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Hydrogen Bonds - What Are Hydrogen Bonds - How Do Hydrogen Bonds Form
 
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In this video we discuss hydrogen bonds. We cover how do hydrogen bonds form, the different elements that take part in hydrogen bonds, and why doesn't oil and water mix. What are hydrogen bonds? An attractive force called a hydrogen bond can exist between certain molecules. These bonds are weaker than ionic or covalent bonds, because it takes less energy to break these types of bonds, however, a large number of these bonds going on can exert a strong force. Hydrogen bonds are the result of an unequal charge distribution on a molecule, these molecules are said to be polar. If we look at a water molecule, we can see the oxygen atom shares electrons with 2 different hydrogen atoms. So, in total this molecule has 10 protons, 8 from oxygen and 1 each from the hydrogen atoms, and a total of 10 electrons, 2 shared between the oxygen atom and hydrogen atom number one, 2 shared between the oxygen atom and hydrogen atom number 2, and the other 6 non shared electrons from the oxygen atom. So, this water molecule is electrically neutral, but it has a partial positive side, the hydrogen side, and a partial negative side, the oxygen side of the molecule. The electrons are not shared equally within the molecule, as they have a higher probability of being found closer to the nucleus of the oxygen atom, giving that end a slightly negative charge. So, the hydrogen atoms end of the molecule will have a slightly positive charge. These charged ends weakly attach the positive end of one water molecule to the negative end of an adjacent water molecule. When water is in liquid form there a few hydrogen bonds, solid form, many bonds, and when water is steam or gas, there are no bonds, because the molecules are too far apart to form any bonds. Hydrogen bonds only form between hydrogen atoms that are covalently bonded, or bonds where electrons are being shared and not transferred, to an oxygen, nitrogen or fluorine atom. These bonds make water ideal for the chemistry of life. Hydrogen bonds are also important in the structure of proteins and nucleic acids, which we will cover in later videos. So, now we know that water molecules are polar, or have slightly positive and slightly negative ends, and in fact, many lipids, or fats and oils, are not polar. So their molecules share electrons equally in their bonds. So, these are nonpolar molecules. This means that when water and oil come together they do not form bonds with one another. Even when we try to mix them, the water molecules will eventually separate because their polar molecules are attracted to one another and will form hydrogen bonds, separating the water and the nonpolar oil molecules.
Views: 101384 Whats Up Dude
Hydrogen Bonding and Common Mistakes
 
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To see all my Chemistry videos, check out http://socratic.org/chemistry Hydrogen bonding can be so confusing, and in this video we talk about some common mistakes. Hydrogen bonds are intermolecular forces between molecules. They form because one atom has a high electronegativity, so it gets a partial negative charge, and the hydrogen gets a partial positive charge.
Views: 575469 Tyler DeWitt
Hydrogen Bonding
 
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This chemistry video tutorial explains how to determine which molecules are capable of exhibiting hydrogen bonding. Examples and practice problems include the following molecules: H2O, CH4, CH3F, HF, CH3OH, CH3OCH3, CH3COOH, CH3CHO, H2S, NH3, PH3, (CH3)3N, (CH3)2NH, C2H4, C2H2, HOCH2CH2OH, CH3SH, and CH3CONH2. This video also discusses the difference between a hydrogen bond and a covalent bond and the difference between an intermolecular bond and an intramolecular bond. it shows the formation and hydrogen bonding that occurs between water molecules.
Hydrogen Bonds In Water Explained - Intermolecular Forces
 
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This chemistry video tutorial provides a basic introduction into hydrogen bonding. Hydrogen bonding occurs in molecules when hydrogen is attached to highly electronegative small atoms such as nitrogen, oxygen, and fluorine. Hydrogen bonds are very strong dipole dipole interactions. Molecules that contain hydrogen bonds such as water are very polar. Hydrogen bonds is one of the strongest types of intermolecular forces. This video contains a few examples and illustrations of hydrogen bonds in water and in HF. New Chemistry Video Playlist: https://www.youtube.com/watch?v=bka20Q9TN6M&t=25s&list=PL0o_zxa4K1BWziAvOKdqsMFSB_MyyLAqS&index=1 Access to Premium Videos: https://www.patreon.com/MathScienceTutor Facebook: https://www.facebook.com/MathScienceTutoring/
How Many Hydrogen Bond Can a Single Water Molecule Form?||Hydrogen Bond in Water(H2O)
 
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How Many Hydrogen Bond Can a Single Water Molecule Form?||Hydrogen Bond in Water Blog Post: https://chemistry291.blogspot.com/2018/12/hydrogen-bonding-in-waterwhat-is-h.html #HowManyHydrogenBondCanaSingleWaterMoleculeForm? #HydrogenBondingInWater(H2O) #Formationofhydrogenbondinwater #hydrogenbondbetweenwatermolecule
Hydrogen bonding in water | Water, acids, and bases | Biology | Khan Academy
 
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Reactants and products in reversible and irreversible chemical reactions. Watch the next lesson: https://www.khanacademy.org/science/biology/water-acids-and-bases/hydrogen-bonding-in-water/v/hydrogen-bonding-in-water?utm_source=YT&utm_medium=Desc&utm_campaign=biology Missed the previous lesson? https://www.khanacademy.org/science/biology/chemistry--of-life/chemical-bonds-and-reactions/v/intermolecular-forces-and-molecular-bonds?utm_source=YT&utm_medium=Desc&utm_campaign=biology Biology on Khan Academy: Life is beautiful! From atoms to cells, from genes to proteins, from populations to ecosystems, biology is the study of the fascinating and intricate systems that make life possible. Dive in to learn more about the many branches of biology and why they are exciting and important. Covers topics seen in a high school or first-year college biology course. About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to Khan Academy's Biology channel: https://www.youtube.com/channel/UC82qE46vcTn7lP4tK_RHhdg?sub_confirmation=1 Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy
Views: 265057 Khan Academy
Don't Make this Mistake with Hydrogen Bonding!
 
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To see all my Chemistry videos, check out http://socratic.org/chemistry Here, I talk about the BIGGEST, most COMMON mistake people make with Hydrogen bonding. Watch this video so you never make this mistake!
Views: 36912 Tyler DeWitt
How hydrogen bonding works
 
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Hydrogens attached to small, highly electronegative atoms can hydrogen bond. Namely N, O and F. Watch more of this topic at ► http://bit.ly/28J1r0F GET MORE CLUTCH! VISIT our website for more of the help you need: http://bit.ly/28J6m3M SUBSCRIBE for new videos: http://cltch.us/1axA33X --- LET'S CONNECT! Facebook: http://cltch.us/1JLgiSZ Twitter: http://cltch.us/1NLcKpu Instagram: http://cltch.us/1If5pb7 Google+: http://cltch.us/1E34o85 Clutch Prep = Textbook specific videos to help you pass your toughest science classes.
Views: 4551 Clutch Prep
Covalent Bonding of Hydrogen, Oxygen & Nitrogen | Chemistry for All | The Fuse School
 
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Learn the basics about the covalent bonding of hydrogen, oxygen and nitrogen as a part of the overall topic of properties of matter. The noble gas structure and covalent bonding is also discussed. SUBSCRIBE to the Fuse School YouTube channel for many more educational videos. Our teachers and animators come together to make fun & easy-to-understand videos in Chemistry, Biology, Physics, Maths & ICT. JOIN our platform at www.fuseschool.org This video is part of 'Chemistry for All' - a Chemistry Education project by our Charity Fuse Foundation - the organisation behind The Fuse School. These videos can be used in a flipped classroom model or as a revision aid. Find our other Chemistry videos here: https://www.youtube.com/playlist?list=PLW0gavSzhMlReKGMVfUt6YuNQsO0bqSMV Twitter: https://twitter.com/fuseSchool Access a deeper Learning Experience in the Fuse School platform and app: www.fuseschool.org Follow us: http://www.youtube.com/fuseschool Friend us: http://www.facebook.com/fuseschool This Open Educational Resource is free of charge, under a Creative Commons License: Attribution-NonCommercial CC BY-NC ( View License Deed: http://creativecommons.org/licenses/by-nc/4.0/ ). You are allowed to download the video for nonprofit, educational use. If you would like to modify the video, please contact us: [email protected]
Chemical Bonding Introduction: Hydrogen Molecule, Covalent Bond & Noble Gases
 
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Chemical bonding introduction video shows how covalent bond means 2 hydrogen atoms can stick together to form a hydrogen molecule, H2. The video also explains why helium cannot form bonds and hence is called a noble gas. Subscribe to watch more online chemistry courses & science videos: http://www.youtube.com/channel/UCiX8pAYWBppIbtUZTfGnRJw?sub_confirmation=1 About Atomic School: Atomic School supports the teaching of Atomic Theory to primary school & science students . We provide lesson plans, hands-on classroom resources, demonstration equipment, quizzes and a Teacher's Manual to primary school teachers. Animated videos that clearly explain the scientific ideas supports learning by both teachers and students. As a teacher, you don't have to look anywhere else to implement this program. Our work has been verified by science education researchers at the University of Southern Queensland, Dr Jenny Donovan and Dr Carole Haeusler, who confirm that primary students are capable of learning much more complex scientific concepts than previously thought, and crucially, that they love it. Students run to class! The program has been trialed in Australian schools as well as schools in the Philippines, Iran and India. It is conducted as holiday workshops at the Australian Nuclear Science and Technology Organisation, the Queensland Museum as well as the World Science Festival. It has attracted wide media interest, including TV, radio and print, and the research data has been presented at prestigious American Education Research Association and Australian Science Education Research Association conferences. Atomic Theory underlies all the other sciences- genetics, electronics, nanotechnology, engineering and astronomy- so an early understanding will set them up for a more successful learning sequence for all their science subjects, and support their mastery of mathematics as well. We also have extension programs that cover Biology, Physics and Astronomy to an equal depth. About Ian Stuart (Email: [email protected]): The founder of Atomic School, Ian Stuart, taught Chemistry and Physics for 25 years at senior levels before he realized that his 8-year old son, Tom, could understand Atomic Theory at a much deeper level than he expected. After visiting Tom's class at school, he discovered that his peers could also grasp the abstract scientific concepts, as well as apply it usefully to the real world. Ian then developed a program to teach the advanced concepts of high school Chemistry, Physics and Biology to students 10 years younger than they normally would. He found that this engaged their interest in modern science early, and sustained it through to high school and beyond. It also sets them up for future success in their academic and career paths. Ian has a Bachelor's Degree in Chemistry from the University of Queensland and a Master's degree in Electrochemistry from the University of Melbourne. Connect with Atomic School on social media: http://facebook.com/AtomicSchool http://twitter.com/AtomicSchools http://instagram.com/AtomicSchools Video transcript: Let's do a thought experiment. Imagine a box filled with hydrogen atoms. Like billiard balls on a pool table, atoms actually move, and they do it in straight lines until they hit something … like another hydrogen atom. Oh! See that? They stuck together. They’re not separate hydrogen atoms any more, but a pair of hydrogen atoms moving together. There goes another pair. 4.1 When atoms join up like this, scientists call it a molecule. And they call the join between them a chemical bond. Here comes another hydrogen atom crashing into the hydrogen molecule. But this time it doesn’t stick. Instead it just bounces off. Hydrogen atoms bond once, and that’s it. They’re just like that. Pretty quickly all the hydrogen atoms will collide and pair off into molecules. They will keep hitting each other, but they'll just bounce off. Scientists like to have a shorthand way of writing this molecule thingi. Here’s one way to show it, with the hydrogen symbols joined by a stick to show the chemical bond between the atoms. Another way is to write H2, with the little 2 after the H and a bit lower. A number written this way is called a subscript. What do you think the 2 stands for? It counts the number of hydrogen atoms in the molecule. Easy, heh! So when we have a balloon filled with hydrogen gas, it really contains trillions of trillions of H2 molecules. Let's do another thought experiment. We'll go back to our box filled with hydrogen atoms, but this time put an oxygen atom in there too. When a hydrogen atom crashes into an oxygen atom, they stick together. But wait, when another hydrogen atom hits, it also sticks to the oxygen. What about a third hydrogen atom? No, that’s if for oxygen. It can only make 2 bonds and then it’s done.
Views: 140489 AtomicSchool
Types of Hydrogen Bonds | Intermolecular and Intramolecular Bonding
 
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There are two different types of hydrogen bonds. They are Intermolecular bonding and Intramolecular bonding. i) Intermolecular hydrogen bonding. This type of bond is formed between the two molecules of the same or different compounds. Some examples of the compounds exhibiting intermolecular hydrogen bonds are : Hydrogen fluoride and water. 1. Hydrogen fluoride, H F. In the solid state, hydrogen fluoride consists of long zig-zag chains of molecules associated by hydrogen bonds as shown in the figure. Therefore, hydrogen fluoride is represented as HFN. 2. Water In water molecule, the electronegative oxygen atom forms two polar covalent bonds with two hydrogen atoms. The oxygen atom due to its higher electronegativity acquires partial negative charge and the two hydrogen atoms acquire partial positive charge. The negatively charged oxygen forms two hydrogen bonds with two positively charged hydrogen atoms of two neighbouring molecules. Each oxygen atom is tetrahedrally surrounded by four hydrogen atoms as shown in visual. Hydrogen bonding in water results in a hydrogen bridge (HOH) network extending in three dimensions and the associated water molecule may be expressed as H Two O N. ii) Intramolecular hydrogen bonding. This type of bond is formed between hydrogen atom and Nitrogen, Oxygen or Flurine atom of the same molecule. This type of hydrogen bonding is commonly called chelation and is more frequently found in organic compounds. Intramolecular hydrogen bonding is possible when a six or five membered rings can be formed. Importance of H-bonding i) Life would have been impossible without liquid water which is the result of intermolecular H-bonding in it. ii) Hydrogen bonding increase the rigidity and strength of wood fibres and thus makes it an article of great utility to meet requirements of housing, furniture, etc. iii) The cotton, silk or synthetic fibres also own their rigidity and tensile strength to hydrogen bonding. iv) Most of our food materials such as carbohydrates and proteins also consist of hydrogen bonding. v) Hydrogen bonding also exists in various tissues, organs, skin, blood and bones.
Views: 3028 Easy Tips 4 Learner
What are the Factors affecting Strength of Hydrogen Bond - H2ChemHacks
 
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Hydrogen Bonds are found between simple molecules that contain either H-F, H-O or H-N bonds. Two factors affect the effectiveness of Hydrogen bonds and hence the boiling point of the molecule. The first factor is extensiveness of the Hydrogen bond, or the average number of Hydrogen bonds each molecule can form. If a molecule can form more Hydrogen bonds, then during boiling more Hydrogen bonds need to be broken which results in a higher boiling point. The second factor is the polarity of the H-F, H-O and H-N bond. In H-F bond is the most polar hence the hydrogen bond that results from this is the strongest, while H-N bond is the least polar which results in the weakest hydrogen bond. To learn more about each of these factors and when to consider them, watch this video tutorial now! Topic - Chemical Bonding, Physical Chemistry, JC, H2, A Level Chemistry, Singapore Found this video useful? Please LIKE this video and SHARE it with your friends. SUBSCRIBE to my YouTube Channel for new A Level H2 Chemistry video lessons every week! Any feedback, comments or questions to clarify? Suggestions for new video lessons? Drop them in the COMMENTS Section, I would love to hear from you! Do you know you can learn Chemistry Concepts under a minute? Follow me on Instagram for my weekly one-minute video lessons at https://www.instagram.com/chemistryguru/ I am also conducting JC H2 Chemistry classes at Bishan Central, Singapore. With my years of experience tutoring hundreds of JC students since 2010, I am confident that I can make H2 Chemistry Simpler for you too! For more information please visit https://chemistryguru.com.sg/ -~-~~-~~~-~~-~- Please watch my latest video: "Valence Shell Electron Pair Repulsion (VSEPR) Theory and Shapes of Molecules" https://www.youtube.com/watch?v=q_NeyW5pe-Y -~-~~-~~~-~~-~-
Hydrogen Bonding | A-level Chemistry | AQA, OCR, Edexcel
 
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https://goo.gl/31T06Y to unlock the full series of AS & A-level Chemistry videos for the new OCR, AQA and Edexcel specification. In today’s video we’re introduced to hydrogen bonding. We’ll look at how hydrogen bonds occur between electron deficient hydrogen and fluorine, oxygen or nitrogen. Next, we’ll discuss how hydrogen bonds affect the properties of water – more precisely why ice is less dense than water, why surface tension, melting and boiling points are high and how its viscosity is affected. The video concludes with an exam style question solved in detail.
Views: 4158 SnapRevise
Why do H2O Molecules form more Hydrogen Bonds compared to NH3 and HF Molecules
 
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H2O molecules have two Hydrogens bonded to an extremely electronegative Oxygen. The H therefore has strong partial positive charge. The Oxygen on the other hamd has two spare lone pairs which have high charge density. So overall two lone pairs will attract two partial positive H. In NH3, Nitrogen has only one lone pair but three partial positive Hydrogen that are directly bonded to electronegative Nitrogen. Now 1 lone pair on N will only attract 1 partial positive H. 2 partial positive will then not be able to attract lone pairs as lone pairs are not available. so fewer hydrogen bonds will be formed. In HF, there is only 1 partial positive H but three lone pairs on Flourine. So again, two extra lone pairs will not be able to form Hydrogen bonds due to non availability of partial positive H, so few Hydrogen bonds will be formed in HF. Hence NH3 and HF will have lesser melting and boiling points compared to H2O. For more Video Lectures for O Levels, A Levels, IB Diploma, AP Courses & Edexcel: https://www.megalecture.com https://www.youtube.com/megalecture For Skype/Whiteboard Subject Experts and Tutors and Free Online Trial Classes, Contact: [email protected]
Views: 486 Mega Lecture
Identifying Hydrogen Bond Donors & Acceptors
 
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Practice identifying organic molecules as hydrogen bond donors and/or acceptors.
Views: 59944 Michael Evans
Water and Hydrogen Bonds (The Importance for Living Organisms)
 
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The polar nature of water gives it some important properties. It allows things to dissolve in it. It has a high specific heat capacity. It’s got a high heat of vaporisation. Water molecules are cohesive meaning they can stick to each other. They are adhesive meaning they can stick to other things. Water has a high surface tension. And because hydrogen bonds force solid water to form in a crystalline structure, ice is less dense than water and therefore it floats. Twitter: https://twitter.com/science_sauce Instagram: https://instagram.com/sciencesauce_online Instagram for students: https://instagram.com/sciencesauce_students Home: http://sciencesauceonline.com First song by Joakim Karud (https://soundcloud.com/joakimkarud) Second song by Ikson (https://soundcloud.com/ikson)
Views: 242 Science Sauce
Hydrogen Bonds
 
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Watch more videos on http://www.brightstorm.com/science/biology SUBSCRIBE FOR All OUR VIDEOS! https://www.youtube.com/subscription_center?add_user=brightstorm2 VISIT BRIGHTSTORM.com FOR TONS OF VIDEO TUTORIALS AND OTHER FEATURES! http://www.brightstorm.com/ LET'S CONNECT! Facebook ► https://www.facebook.com/brightstorm Pinterest ► https://www.pinterest.com/brightstorm/ Google+ ► https://plus.google.com/+brightstorm/ Twitter ► https://twitter.com/brightstorm_ Brightstorm website ► https://www.brightstorm.com/
Views: 128634 Brightstorm
Atomic Hook-Ups - Types of Chemical Bonds: Crash Course Chemistry #22
 
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Atoms are a lot like us - we call their relationships "bonds," and there are many different types. Each kind of atomic relationship requires a different type of energy, but they all do best when they settle into the lowest stress situation possible. The nature of the bond between atoms is related to the distance between them and, like people, it also depends on how positive or negative they are. Unlike with human relationships, we can analyze exactly what makes chemical relationships work, and that's what this episode is all about. If you are paying attention, you will learn that chemical bonds form in order to minimize the energy difference between two atoms or ions; that those chemical bonds may be covalent if atoms share electrons, and that covalent bonds can share those electrons evenly or unevenly; that bonds can also be ionic if the electrons are transferred instead of shared: and how to calculate the energy transferred in an ionic bond using Coulomb's Law. -- Table of Contents Bonds Minimize Energy 01:38 Covalent Bonds 03:18 Ionic Bonds 05:37 Coulomb's Law 05:51 -- Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support CrashCourse on Subbable: http://subbable.com/crashcourse
Views: 1785789 CrashCourse
Hydrogen bonding
 
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Hydrogen bonding. I'm not sure how much detail you want, but here goes... :)
Views: 51930 Janet Coonce
Properties of Water | Hydrogen Bonding in Water | Biology | Biochemistry
 
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Why is water essential for Life to exist on Earth? We are about 60% water - and there are some organisms that are as much as 90% water! What is so important about water? How does it support life? In this video, we discuss the special properties of water that make it the “Solvent of Life.” Chief among these properties is the extensive Hydrogen Bonding between water molecules that make water an extremely cohesive liquid (the molecules stick together). Due to the extensive hydrogen bonding, water has some emergent properties that impact life on Earth in many ways. These include: Cohesion Adhesion High surface tension High specific heat High heat of vaporization Ice Floats (Ice is less dense as a solid than liquid water) For each of these properties, we discuss how they impact living creatures on Earth. ❀❀❀❀❀❀❀❀❀❀ Our series on Biology is aimed at the first-year college level, including pre-med students. These videos should also be helpful for students in challenging high school biology courses. Perfect for preparing for the AP Biology exam or the Biology SAT. Also appropriate for advanced homeschoolers. You can also follow along if you are just curious, and would like to know more about this fascinating subject. Our current biology textbook recommendation is Campbell Biology from Pearson. 10th edition Amazon Link: http://amzn.to/2mahQTi 11th edition Amazon Link: http://amzn.to/2m7xU6w Shop Amazon Used Textbooks - Save up to 90% http://amzn.to/2pllk4B For lighter reading, we recommend: I Contain Multitudes: The Microbes Within Us and a Grander View of Life by Ed Yong http://amzn.to/2pLOddQ Lab Girl by Hope Jahren http://amzn.to/2oMolPg ❀❀❀❀❀❀❀❀❀❀ This video was made possible by the generous donations of our Patrons on Patreon! We dedicate this video to our VIP Patron, Tracy Karin Prell. Tracy is an amazing advocate for science communication. Thank you so much, Tracy! ❀❀❀❀❀❀❀❀❀❀ Please Subscribe so you'll hear about our newest videos! http://bit.ly/1ixuu9W If you found this video helpful, please give it a "thumbs up" and share it with your friends! If you'd like to support more great educational videos from Socratica, please consider becoming our Patron on Patreon! https://www.patreon.com/socratica ❀❀❀❀❀❀❀❀❀❀ Directed by Michael Harrison Written and Produced by Kimberly Hatch Harrison About our instructor: Kimberly Hatch Harrison received degrees in Biology and English Literature from Caltech before working in pharmaceuticals research, developing drugs for autoimmune disorders. She then continued her studies in Molecular Biology (focusing on Immunology and Neurobiology) at Princeton University, where she began teaching as a graduate student. Her success in teaching convinced her to leave the glamorous world of biology research and turn to teaching full-time, accepting a position at an exclusive prep school, where she taught biology and chemistry for eight years. She is now the head writer and producer of Socratica Studios. ❀❀❀❀❀❀❀❀❀❀ Creative Commons Picture Credits Basilisk running on water https://en.wikipedia.org/wiki/File:Basiliscus_basiliscus_running_on_water_-_pone.0037300.s001.ogv Author: Minetti et al. xylem http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0089934 Author: Boutilier et al 2014 PLOS Meniscus http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0050320 Author: Jingmin et al 2012 PLOS Little girl drinking https://pixabay.com/en/girl-thirsty-drink-fountain-water-2241750/ Author: brisch27 Army scout drinking https://pixabay.com/en/girl-scout-army-thirsty-sensuality-932421/ Author: AdinaVoicu Water drop Macro View http://www.publicdomainpictures.net/view-image.php?image=173836&picture=water-drop-macro-view Author: JeanBeauford Woman in the Ocean http://www.publicdomainpictures.net/view-image.php?image=172525&picture=woman-in-the-ocean Author: JeanBeauford Water on fabric https://en.wikipedia.org/wiki/File:Water_droplet_lying_on_a_damask.jpg Author: Petar Milosevic Water strider https://en.wikipedia.org/wiki/File:WaterstriderEnWiki.jpg Author: PD Polar bear on ice https://en.wikipedia.org/wiki/File:Polar_Bear_AdF.jpg Author: Arturo de Frias Marques Penguins on ice https://en.wikipedia.org/wiki/File:Pygoscelis_antarctica_trying_to_get_to_iceberg.wmv.ogv Author: Brocken Inaglory Cells (colourized) https://pixabay.com/en/white-blood-cell-cell-blood-cell-543471 Author: skeeze Hydrogen bonds in water https://en.wikipedia.org/wiki/File:3D_model_hydrogen_bonds_in_water.svg Author: Qwerter Water strider footage https://en.wikipedia.org/wiki/File:Vesimittareita.ogv Author: Uusijani roadrunner https://en.wikipedia.org/wiki/File:The_Greater_Roadrunner_Walking.jpg Author: Jessie Eastland Partially frozen pond http://www.publicdomainpictures.net/view-image.php?image=15079&picture=partially-frozen-pond Author: David Wagner
Views: 26097 Socratica
Base Pairing and Hydrogen Bonding in NAs
 
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This webcast describes the hydrogen bonding that holds individual strands of DNA and RNA together. In essence, we'll provide a chemical explanation for "G goes with C; A goes with T."
Views: 11509 Michael Evans
Properties of Water | Polarity | Hydrogen Bonds | Adhesion & Cohesion
 
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You drink it, clean with it, and swim in it, but do you really understand it? Take a few minutes and learn about how awesome water really is. Subscribe: http://bit.ly/2wJ0DHa TheCrazyChosenOne: https://www.youtube.com/channel/UC_Oz1ntBqRGuhZ5g9MvgyqA Learn more about water! https://owlcation.com/stem/5-Properties-of-Water https://socratic.org/questions/what-are-some-examples-of-properties-of-water https://science.howstuffworks.com/environmental/earth/geophysics/h2o7.htm Now, on to water aka dihydrogen monoxide aka H2O. Water is made up of one oxygen atom, and two hydrogen atoms. And looks something like this. This structure makes water a very polar molecule. Without going into the beautiful details, Oxygen has a net negative charge while the opposite ends with the hydrogens have a net positive charge. This allows water molecules to form hydrogen bonds and gives water many of its other properties. Cohesion and Adhesion are two such properties. Cohesion is water’s attraction to itself. The hydrogen bonds that I mentioned facilitate this. This is also why water has surface tension, allowing bugs to walk on it. Additionally, cohesion keeps water a liquid at moderate temperatures instead of a gas. Adhesion is water’s attraction to other surfaces. Water will adhere to anything it can form a hydrogen bonds with. This is the reason for capillary action, where water climbs up a narrow glass tube. Another property of water is it’s high heat capacity. Heat capacity is a substance ability to absorb heat. More accurately, it’s the amount of energy needed to raise one gram of a substance by one degree celsius. This allows water to absorb temperature changes and keep air temperature at moderate levels. Which is pretty cool… Finally, water is known as the universal solvent, meaning that a wide range of substances can be dissolved in it. This includes hydrophilic and polar molecules like sugars and salts. Substances that generally don’t dissolve in water are hydrophobic, like oils. So now you know a little more about the properties of H2O, and bare in mind, we only covered a portion of water’s amazing properties, so be sure to check the links in the description to learn more. And, as always throw any questions in the comment section! Now, I want to give a shoutout to one of my subscribers, TheCrazyChosenOne. The channel is linked below. It’s a gaming channel with a lot of Fortnite recently, and who doesn’t love some Fortnite gameplay, am I right? Easy listening, enjoyable watching. The channel is not limited though, it features a wide variety of game from Minecraft to Call of Duty. So check it out, and if you like the content, give it some love with likes, comments, and a sub. If you want your channel featured in my next vid, let me know. I’ll catch you next time.
Views: 1867 2 Minute Classroom
Ever Studied Hydrogen Bonding with Pizzas?
 
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Let’s talk about the electronegativity and charge density of Nitrogen and Chlorine and also how Hydrogen bonding influences the corresponding atoms… Sounds serious? Then, let’s look at the same but with a twist. Let’s try to understand them by using a pizza! We at Byju's Classes strongly believe that a spirit of learning and understanding can only be inculcated when the student is curious, and that curiosity can be brought about by creative and effective teaching. It is this approach that makes our lectures so successful and gives our students an edge over their counterparts. Our website- http://www.byjus.com/ Download our app on android- https://goo.gl/5Uz70E Download our app on an Apple device- https://goo.gl/2mLi1I
Views: 51050 BYJU'S
Hydrogen Bonding and Its Types - Nature of Chemical Bond - Chemistry Class 11
 
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Hydrogen Bonding and Its Types Video Lecture from Chapter Nature of Chemical Bond of Subject Chemistry Class 11 for HSC, IIT JEE, CBSE & NEET. Watch Previous Videos of Chapter Nature of Chemical Bond:- 1) Molecular Orbital Diagram of Carbon Molecule - Nature of Chemical Bond - Chemistry Class 11 - https://youtu.be/azTMA6ggBpY 2) Molecular Orbital Diagram of Nitrogen Molecule - Nature of Chemical Bond - Chemistry Class 11 - https://youtu.be/RaUUt9o5HvM Access the Complete Playlist of Chapter Nature of Chemical Bond:- http://gg.gg/Nature-of-Chemical-Bond Access the Complete Playlist of Chemistry Class 11:- http://gg.gg/Chemistry-Class-11 Subscribe to Ekeeda Channel to access more videos:- http://gg.gg/Subscribe-Now #NatureofChemicalBond #ChemistryClass11 #ChemistryClass11JEE #ChemistryClass11Lectures #ChemistryClass11Tutorial #OnlineVideoLectures #EkeedaOnlineLectures #EkeedaVideoLectures #EkeedaVideoTutorial Nature of Chemical Bond Chemistry Class 11 Nature of Chemical Bond Class 11 Chemistry Class 11 Nature of Chemical Bond 11 Chemistry Nature of Chemical Bond Nature of Chemical Bond 11th Std Class 11 Nature of Chemical Bond Class 11 Chemistry Chemistry for Class 11 Thanks For Watching. You can follow and Like us on following social media. Website - http://ekeeda.com Parent Channel - https://www.youtube.com/c/ekeeda Facebook - https://www.facebook.com/ekeeda Twitter - https://twitter.com/Ekeeda_Video LinkedIn- https://www.linkedin.com/company-beta/13222723/ Instgram - https://www.instagram.com/ekeeda_/ Pinterest - https://in.pinterest.com/ekeedavideo You can reach us on [email protected] Happy Learning : )
Views: 291 Ekeeda
Hydrogen bonding: Its type and consequences Ft. Pooja Sharma
 
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U can like my Facebook page ie. Vipin Sharma Biology Blogs for more information regarding every national level competitive exam in which biology is a part . Like this video share it with your frnds n subscribe to my channel if u r new. Thanq so much for supporting me guys 👍 😊. Biopedia page: http://m.facebook.com/biopedia.co.in/?notif_t=feedback_reaction_generic&notif_id=1530624004172192&ref=m_notif https://unacademy.com/user/vks199711-4457 Open this link and click on "follow" button as well as "login" to support me on Unacademy. Do share with all your friends. https://mbasic.facebook.com/Vipin-Sharma-Biology-Blogs-588472744670315/?__xt__=11.%7B%22event%22%3A%22visit_page_tab%22%2C%22user_id%22%3A100003119064758%2C%22page_id%22%3A588472744670315%7D
hydrogen bonds
 
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Views: 212285 22profphilippe
Polar Bonds and Hydrogen Bonds
 
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Simple explanation of polar covalent bonds and hydrogen bonds. Find more free tutorials, videos and readings for the science classroom at ricochetscience.com
Views: 63336 RicochetScience
How Covalent Bonds Form
 
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A description of how carbon and hydrogen share electrons to form a covalently bonded compound.
Views: 11872 BioBunn
Hydrogen Bonding Song
 
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Also known as, "Pretty Boy Bond" . (bonding, bonding, bonding) [Chorus:] This right here is my bond (bond, bond) All the electrons* are on my bond (bond, bond) Everybody pay attention (yeah) This right here is my hydrogen bond (ayeee) Hydrogen bond (ayye) [x4] Electrons form octets when I hydrogen bond, Ionic or covalent its a hydrogen bond Watch my hydrogen bond (ayye) [x2] Electrons form octets when I hydrogen bond, Ionic or covalent its a hydrogen bond Bonding! [Soulja Boy:] Get out the way Hydrogen's on the screen Me and flourine we'll bond ionic-ly. You see me everywhere since im in H2O (water) Theres hydrogen in water, and i think you should know (woosh) I'm lookin' for a single bond; two-electron parr (pair) A strong attractive force holds them togeth-are (the Sun) Learning about bonding will take you very far Chorus comes up in 5, 4, 3, 2, 1 [Chorus] [Soulja Boy:] Hydrogen bonding with water is pretty nice (woo) Two hydrogens one oxygen makes up all my ice (burr) For hydrogen gas, you'll need a subscript two (twice?) Its in the Magnificent Seven, just ask Mr. Hsu (swag) You might think that we, we are pretty smart (we are) Hydrogen and I; we always toppin' charts. (clever) I hope you've learned about, how molecules bond (yeah) Oh, and hydrogen atoms can never ever ever double bond! [Chorus]
Views: 13901 shanemckeon1
Intermolecular Forces
 
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Erika Tan describes the characteristics of London dispersion forces, dipole-dipole interactions, and hydrogen bonds. TRANSCRIPT: So there’s three main intermolecular forces that you need to know, and these are London dispersion forces, dipole-dipole interactions, and hydrogen bonds. And these are all listed in order of increasing strength going down. So London dispersion forces are the weakest, and they also occur in all molecules. Remember that. An example of this would be two H2 molecules. H2 is a nonpolar molecule, meaning it has no net charge. So there’s electrons moving around the H2 molecule, they’re moving and moving, and let’s say that this electron gets close to the nucleus of this one H2 molecule. This is going to create a very slight, temporary attraction between the electron and the nucleus. And that’s what London dispersion forces really describe – they’re temporary, short attractions due to moving electrons. Now we have dipole-dipole interactions. An example of this would be an HCl molecule and another HCl molecule. So, Cl is a more electronegative atom than hydrogen. So it’s going to be pulling the electrons from hydrogen closer to itself. To denote this, we use an arrow showing the flow of electrons, and you put a little cross to show where the partial positive charge is at. So hydrogen has the partial positive charge, and chlorine has a partial negative charge. We can do the same thing for this molecule. So since chlorine has a partial negative charge and hydrogen has a partial positive charge, these two will attract each other. There will be an electrostatic force in between them. And that’s what we call dipole-dipole interactions. Now here, I’ve written induced dipole because they come in between London dispersion forces and dipole-dipole interactions. Let’s go back to our old friend H2, and we can have another HCl molecule here. So H2 is nonpolar while HCl is polar. This is going to induce the H2 into a dipole. And I’ll show you how that works. So H2 looks like this, HCl looks like this. We have the dipole for HCl. And, oops – I wrote it in the wrong direction. Let’s switch these two, say HCl is over here and H2 is over here. So since this has a partial negative charge, it’s going to repel the electrons on this side of the H2. So the electrons are going to want to move away from the Cl. That’s going to create a temporary dipole going in this direction; there’s going to be a partial positive charge on this side. And that’s going to be your induced dipole. The HCl is going to induce the H2 into a dipole. But that’s going to be for a very short amount of time, it’s going to be temporary, and it’s not that strong. So last up is hydrogen bonds. You’ve probably heard about these in biology, or somewhere else earlier. So let me just draw two water molecules. Oxygen is much more electronegative than hydrogen, so the dipoles are going to be going this way. Same thing for this one, the electrons are going to be moving towards the oxygen. So now there’s going to be a temporary attraction between the oxygen and hydrogen, because remember, oxygen has a partial negative charge while hydrogen has a partial positive charge. So that’s what hydrogen bonds are; they aren’t bonds in between the atoms, they’re bonds in between the actual different molecules. Not between the atoms. So that’s it for intermolecular forces.
Views: 899 Tangerine Education
Ionic and Covalent Bonds, Hydrogen Bonds, van der Waals - 4 types of Chemical Bonds in Biology
 
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There are four types of chemical bonds essential for life to exist: Ionic Bonds, Covalent Bonds, Hydrogen Bonds, and van der Waals interactions. We need all of these different kinds of bonds to play various roles in biochemical interactions. These bonds vary in their strengths. In Chemistry, we think of Ionic Bonds and Covalent bonds as having an overlapping range of strengths. But remember, in biochemistry, everything is happening in the context of water. This means Ionic bonds tend to dissociate in water. Thus, we will think of these bonds in the following order (strongest to weakest): Covalent, Ionic, Hydrogen, and van der Waals. Also note that in Chemistry, the weakest bonds are more commonly referred to as “dispersion forces.” Related Chemistry video: Ionic Bonds vs Covalent Bonds http://bit.ly/2cUG6C8 Our series on Biology is aimed at the first-year college level, including pre-med students. These videos should also be helpful for students in challenging high school biology courses. Perfect for preparing for the AP Biology exam or the Biology SAT. Also appropriate for advanced homeschoolers. You can also follow along if you are just curious, and would like to know more about this fascinating subject. ***** Our current biology textbook recommendation is Campbell Biology from Pearson. 10th edition Amazon Link: http://amzn.to/2mahQTi 11th edition Amazon Link: http://amzn.to/2m7xU6w Amazon Used Textbooks - Save up to 90% http://amzn.to/2pllk4B For lighter reading, we recommend: I Contain Multitudes: The Microbes Within Us and a Grander View of Life by Ed Yong http://amzn.to/2pLOddQ Lab Girl by Hope Jahren http://amzn.to/2oMolPg ***** This video was made possible by the generous donations of our Patrons on Patreon. We dedicate this video to our VIP Patron, Vishal Shah. We’re so thankful for your support! ***** Please Subscribe so you'll hear about our newest videos! http://bit.ly/1ixuu9W If you found this video helpful, please give it a "thumbs up" and share it with your friends! If you'd like to support more great educational videos from Socratica, please consider becoming our Patron on Patreon! https://www.patreon.com/socratica ***** Written and Produced by Kimberly Hatch Harrison About our instructor: Kimberly Hatch Harrison received degrees in Biology and English Literature from Caltech before working in pharmaceuticals research, developing drugs for autoimmune disorders. She then continued her studies in Molecular Biology (focusing on Immunology and Neurobiology) at Princeton University, where she began teaching as a graduate student. Her success in teaching convinced her to leave the glamorous world of biology research and turn to teaching full-time, accepting a position at an exclusive prep school, where she taught biology and chemistry for eight years. She is now the head writer and producer of Socratica Studios. ****** Creative Commons Picture Credits: Salt crystals https://en.wikipedia.org/wiki/File:Halit-Kristalle.jpg Author: W.J. Pilsak Hydrogen Bonding in water https://en.wikipedia.org/wiki/File:3D_model_hydrogen_bonds_in_water.svg Author: Qwerter Products in this video: Preparing for the Biology AP* Exam (School Edition) (Pearson Education Test Prep) - http://amzn.to/2qJVbxm Cracking the AP Biology Exam, 2017 Edition: Proven Techniques to Help You Score a 5 (College Test Preparation) - http://amzn.to/2qB3NsZ Cracking the SAT Biology E/M Subject Test, 15th Edition (College Test Preparation) - http://amzn.to/2qJIfHN
Views: 43038 Socratica
Hydrogen Bonding | Chemistry | Chegg Tutors
 
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Hydrogen bonding is an intermolecular or intramolecular attraction that occurs between molecules with hydrogen bond donors and molecules with hydrogen bond acceptors. Hydrogen bond donors are molecules that have a hydrogen attached to an electronegative atom (for example, hydroxyls or amines). Hydrogen bond acceptors are molecules that have a lone pair of electrons located on an electronegative atom (for example, oxygen, nitrogen, or fluorine). Hydrogen bonds are not as strong as covalent and ionic bonds but are stronger than van der Waals interactions. Hydrogen bonding is responsible for the high boiling point of water and is important for the organization of complementary chains of base pairs in DNA and RNA. ---------- Chemistry tutoring on Chegg Tutors Learn about Chemistry terms like Hydrogen Bonding on Chegg Tutors. Work with live, online Chemistry tutors like Jamie B. who can help you at any moment, whether at 2 pm or 2 am. Liked the video tutorial? Schedule lessons on-demand or schedule weekly tutoring in advance with tutors like Jamie B. Visit: https://www.chegg.com/tutors/Chemistry-online-tutoring/?utm_source=youtube&utm_medium=video&utm_content=managed&utm_campaign=videotutorials ---------- About Jamie B., Chemistry tutor on Chegg Tutors: Harvard University, Class of 2013 BA Mathematics & English, MS Applied Mathematics major Subjects tutored: SAT, SAT II Latin, Geometry, Chemistry, Set Theory, Physics, R Programming, Latin, Discrete Math, Computer Science, MATLAB, English, Psychology, Writing, Literature, Geometry (College Advanced), Biology, Linguistics, Study Skills, Number Theory, Statistics, Applied Mathematics, Numerical Analysis, Linear Algebra, Basic Math, and Calculus TEACHING EXPERIENCE I'm a certified Math and English teacher for grades 8-12 in Massachusetts. Right now, I focus on gifted students with learning disabilities, ADHD, and mental health challenges who may be underperforming and overstressed in their classes. I can work with you if you have diagnosed LD or simply learn best outside of a traditional lecture and textbook format. If I don't know about something, I will tell you that openly, I'll point to where you might be able to find that information, and I'll learn more about it for next time. I'm strongest as a teacher when I'm working one-on-one and my favorite part of teaching is "diagnosing" where a student's thinking might be leading them astray (or ahead!)I got my Masters at Harvard in Applied Math, focusing on statistics and advanced mechanics/physics applied to biology. I taught and tutored Organic Chemistry, Precalculus, Calculus, proof-based Linear Algebra and Real Analysis, and Intro to Applied Math (for majors) at Harvard. I also work with student writing for classes, projects and graduate applications as a tutor in my undergraduate house. I've tutored everything from 5th grade math to competitive math teams to graduate school pure math and engineering. I've worked with Master's Engineering students studying for the TOEFL alongside high school sophomores in my Saturday volunteer creative writing classes, and I've tutored undergraduates at Harvard and helped develop curriculum in proof-based math and numerical experimentation-driven freshman physics. EXTRACURRICULAR INTERESTS I'm from Brooklyn, NY. I'm a city kid who could stare at the stars all night, which I do when I visit my family in rural Canada. I love biking, choral singing, performing poetry, teaching in all settings and with all people, and crisis management and education for mental health. I'm always looking to get into new art forms, learn new languages and pursue things where my gaps lead me. I also have difficulty keeping a straight face for more than a few minutes (or a paragraph) at a time. Want to book a private lesson with Jamie B.? Message Jamie B. at https://www.chegg.com/tutors/online-tutors/Jamie-B-224764/?utm_source=youtube&utm_medium=video&utm_content=managed&utm_campaign=videotutorials ---------- Like what you see? Subscribe to Chegg's Youtube Channel: http://bit.ly/1PwMn3k ---------- Visit Chegg.com for purchasing or renting textbooks, getting homework help, finding an online tutor, applying for scholarships and internships, discovering colleges, and more! https://chegg.com ---------- Want more from Chegg? Follow Chegg on social media: http://instagram.com/chegg http://facebook.com/chegg http://twitter.com/chegg
Views: 1924 Chegg
Hydrogen bonds in ammonia and water molecules
 
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This channel is dedicated to students of chemistry, medicine, pharmacy, biology, physics, agriculture and other branches studying chemistry.
Views: 522 Chemistry Channel
Hydrogen Bonding
 
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Views: 6548 thecollegegateway
Hydrogen Bonding - States of Matter - Chemistry Class 11
 
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Hydrogen Bonding Video Lecture from States of Matter Chapter of Chemistry Class 11 for HSC, IIT JEE, CBSE & NEET. Android Application - https://play.google.com/store/apps/details?id=student.ekeeda.com.ekeeda_student&hl=en Access the Complete Playlist of Chapter States of Matter - https://www.youtube.com/playlist?list=PLufui6SrOPuq9Hl7osaprRcOgsQxIZgWX Access the Complete Playlist of Subject Chemistry Class 11 - https://www.youtube.com/playlist?list=PLm_MSClsnwm8IZSj7AVFqQqBtCgGe3Ak6 #HydrogenBonding #StatesofMatter #ChemistryClass11 #ChemistryClass11JEE #ChemistryClass11lectures #OnlineFYJCVideoLectures #OnlineVideoLectures #EkeedaOnlineLectures #EkeedaVideoLectures #EkeedaVideoTutorial States of Matter Chemistry Class 11 Chemistry Class 11 Lectures Thanks For Watching. You can follow and Like us on following social media. Website - http://ekeeda.com Parent Channel - https://www.youtube.com/c/ekeeda Facebook - https://www.facebook.com/ekeeda Twitter - https://twitter.com/Ekeeda_Video LinkedIn- https://www.linkedin.com/company-beta/13222723/ Instgram - https://www.instagram.com/ekeeda_/ Pinterest - https://in.pinterest.com/ekeedavideo You can reach us at [email protected] Happy Learning : )
Views: 341 Ekeeda
Hydrogen Bonding (AP Biology)
 
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Hydrogen bonds play a critical role in cell signalling, energy transfer, enzymatic processes, protein and DNA structure and conformation, and many other roles within living organisms. This video discusses the definition of hydrogen bonds and how to spot spot them within biological molecules. Being able to spot these interactions within macromolecules will be able to help you better understand structure and function, as well as possible intermolecular interactions.
Views: 997 The Furiosi Files
Intermolecular Forces and Boiling Points
 
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Why do different liquids boil at different temperatures? It has to do with how strongly the molecules interact with each other. Find out all the different ways, and how to use them to make predictions about matter! To support this channel and keep up on STEM news at the same time, click on the link below and subscribe to this FREE newsletter: http://www.jdoqocy.com/click-9021241-13591026 Subscribe: http://bit.ly/ProfDaveSubscribe [email protected] http://patreon.com/ProfessorDaveExplains http://professordaveexplains.com http://facebook.com/ProfessorDaveExpl... http://twitter.com/DaveExplains General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 Mathematics Tutorials: http://bit.ly/ProfDaveMaths Biology Tutorials: http://bit.ly/ProfDaveBio American History Tutorials: http://bit.ly/ProfDaveAmericanHistory
Views: 638711 Professor Dave Explains
Hydrogen Bonding Notation- AS Chemistry
 
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In this video I take a look at the notation that we can use to represent a Hydrogen Bond.
Views: 655 A Level Scientist
03 Hydrogen Bonds
 
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In this lesson, hydrogen bonds are studied. The lesson proceeds then to explain some of the physical properties of water that can be attributed to hydrogen bonds.
Views: 472 Mindset Learn
Hydrogen Bonding Demonstration Video
 
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A video made by me and my partner, Enaile Da Silva, discussing Hydrogen bonding within water.
Views: 220 Eric Bielakiewicz
hydrogen bonding
 
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translation: Hydrogen bonding connects two or more molecules together hence it being an intermolecular force. Hydrogen bonding is a special form of Dipole-Dipole forces that is specifically bonded between a hydrogen atom and either a Nitrogen, Fluorine, or Oxygen atom. Out of the three intermolecular forces, hydrogen bonding is the strongest. This is caused by hydrogen being highly partially positive and thus having a stronger attraction to a partially negative end of another molecule. This is shown in the top left corner of the slide; An Oxygen of a H2O molecule is partially negative and the partially positive end of a Oxygen on another H2O molecule is attracted and forms a hydrogen bond. The strength of the hydrogen bond leads molecules to be able to have higher boiling points than the other intermolecular forces; this is due to the fact that it is harder to break apart molecules that are formed by hydrogen bonds. Hydrogen bonding is still no match for the strength of intramolecular bonds. Hydrogen bonds are 1/10th the strength of covalent bonds.
Views: 12 Huddy Abel
√ Bonding in carbon compounds | Energy | Chemistry
 
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#iitutor #Chemistry #Energy https://www.iitutor.com/ In organic compounds carbon atoms almost always form four bonds. This suggests that the carbon atom’s four valence electrons are all involved in bonding. An examination of simple carbon-base molecules like methane (CH4) and carbon tetrachloride (CCl4) indicates that in these compounds the carbon atom forms four identical single covalent bonds and that the angles between the bonds are 109.5 . It can be predicted from the valence shell electron pair is required to minimise the electrostatic repulsion between them. The central role of carbon in organic chemistry depends on the fact carbon atoms can form chains of virtually unlimited length containing a succession of carbon-carbons bonds. The valence electrons not involved in forming carbon-carbon bonds are used in forming bonds with atoms of other elements such as hydrogen, oxygen, nitrogen and halogens. The properties of carbon that allow it to form a huge number and variety of compounds include: • four outer shell valence electrons • can form single, double and triple bonds • can form chains and rings, which can be branched or unbranched • can share electrons with other non-metals Carbon atoms can bond to one another by single, double or triple covalent bonds. Lewis electron-dot diagrams do not show the spatial distribution of bonds in three dimensions. Carbon-carbon single bonds Single covalent bonds around a carbon atom are arranged tetrahedrally (bond angle=109.28 ). Methane is a good example of this arrangement of carbon-hydrogen single bonds. The two simplest molecules containing carbon-carbon single bonds are ethane (CH3CH3) and propane (CH 3CH2CH3). In these compounds each carbon atom forms four single bonds which again have a tetrahedral orientation. In the case of CH3CH3 three of the bonds formed by the carbon atoms are C-H bonds, while the other bond is a C-C bond. The length of the single C-C bond in these compounds has been found to be 0.154 nm. Carbon-carbon double bonds The compound ethene (CH2CH2) is the simplest carbon compound containing a C=C double bond. In this case only two of each carbon atom's four valence electrons are used in bonding with hydrogen atoms. Hence each carbon atom shares two pairs of electrons with another carbon atom. These two pairs of electrons constitute a double bond. The presence of one double covalent bond forces the bonding electrons into a planar arrangement (bond angle=120 ), so the structure of ethane (ethylene) is planar. An examination of compounds such as ethene (CH2CH2 ) indicates that the C=C bond length is 0.134 nm, the bond angles are 120°, and the geometric arrangement of the two carbon atoms and adjoining hydrogen atoms is planar. This again can be explained in terms of the VSEPR theory. In using the VSEPR theory the C=C double bond is viewed as a single region of charge. To minimise electron repulsion the three electron regions around each carbon atom adopt a planar orientation with bond angles of 120°.
Views: 5902 iitutor.com
Physical Properties of Alcohol: Hydrogen Bonding, Solubility and Boiling Point
 
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http://leah4sci.com/alcohol Presents: Physical Properties of Alcohol including Hydrogen Bonding, Solubility and Boiling Point Need help with Orgo? Download my free guide ’10 Secrets to Acing Organic Chemistry’ HERE: http://leah4sci.com/orgo-ebook/ In this video: [0:13] Understanding the Alcohol Functional Group [2:17] Hydrogen Bonds as Strongest IMF [3:35] Difference Between Soluble & Miscible [7:14] Solubility Rules for Molecules in Water [8:12] Effects of Boiling Point on IMF [11:58] Different Boiling Point of Butanol Alcohols have very unique hydrogen interactions. This video explains by looking at the intermolecular forces behind hydrogen bonding, alcohol's solubility in water, miscibility, the structure's effects on boiling point trends, and much more. Links & Resources Mentioned In This Video: Intro to Alcohol Reactions: http://leah4sci.com/introduction-to-alcohol-reactions/ Catch the entire Alcohol Video Series along with the Alcohol Practice Quiz and Cheat Sheet on my website at http://leah4sci.com/alcohol For more in-depth review on Alcohols including practice problems and explanations, come join my online membership site the organic chemistry study hall: http://leah4sci.com/join For private online tutoring visit my website: http://leah4sci.com/organic-chemistry Finally, for questions and comments, find me on social media here: Facebook: https://www.facebook.com/Leah4Sci Twitter: https://twitter.com/Leah4Sci Instagram: https://www.instagram.com/leah4sci/ Google+ : https://plus.google.com/u/0/+LeahFisch Pinterest: http://www.pinterest.com/leah4sci/
Views: 15979 Leah4sci
Hydrogen Bonding and Physical Properties of Compounds |Effect on Boiling Point and Solubility|
 
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This video lecture is continuation of previous lecture concept of Hydrogen Bonding and Its conditions... In this video you can learn how hydrogen bonding affects Thermodynamic Properties of Compounds such as boiling points... You can learn the relationship of Hydrogen Bonding and solubility of Compounds.This video explains why water is liquid whereas hydrogen sulphide is gas and why hydrogen fluoride is weak acid.... The link for concept of Hydrogen Bonding and Its conditions is below: https://youtu.be/QYr2z5T-ICU
Properties of Water
 
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Explore some properties of water with the Amoeba Sisters! It's all about those hydrogen bonds. Video has handout: http://www.amoebasisters.com/handouts Terms discussed include adhesion, cohesion, surface tension, specific heat - all made possible by those amazing hydrogen bonds. Support us on Patreon! http://www.patreon.com/amoebasisters Our FREE resources: GIFs: http://www.amoebasisters.com/gifs.html Handouts: http://www.amoebasisters.com/handouts.html Comics: http://www.amoebasisters.com/parameciumparlorcomics Connect with us! Website: http://www.AmoebaSisters.com Twitter: http://www.twitter.com/AmoebaSisters Facebook: http://www.facebook.com/AmoebaSisters Tumblr: http://www.amoebasisters.tumblr.com Pinterest: http://www.pinterest.com/AmoebaSister­s Instagram: https://www.instagram.com/amoebasistersofficial/ Visit our Redbubble store at http://www.amoebasisters.com/store.html The Amoeba Sisters videos demystify science with humor and relevance. The videos center on Pinky's certification and experience in teaching science at the high school level. Pinky's teacher certification is in grades 4-8 science and 8-12 composite science (encompassing biology, chemistry, and physics). Amoeba Sisters videos only cover concepts that Pinky is certified to teach, and they focus on her specialty: secondary life science. For more information about The Amoeba Sisters, visit: http://www.amoebasisters.com/about-us.html We cover the basics in biology concepts at the secondary level. If you are looking to discover more about biology and go into depth beyond these basics, our recommended reference is the FREE, peer reviewed, open source OpenStax biology textbook: https://openstax.org/details/books/biology *We mention that water makes up "3/4 of the Earth's surface" and we wish we had said "nearly" This number is going to be an estimate, but here is a source that puts it around 71%. https://water.usgs.gov/edu/earthhowmuch.html We take pride in our AWESOME community, and we welcome feedback and discussion. However, please remember that this is an education channel. See YouTube's community guidelines https://www.youtube.com/yt/policyandsafety/communityguidelines.html and YouTube's policy center https://support.google.com/youtube/topic/2676378?hl=en&ref_topic=6151248. We also reserve the right to remove comments with vulgar language. Music is this video is listed free to use/no attribution required from the YouTube audio library https://www.youtube.com/audiolibrary/music?feature=blog We have YouTube's community contributed subtitles feature on to allow translations for different languages. YouTube automatically credits the different language contributors below (unless the contributor had opted out of being credited). We are thankful for those that contribute different languages. If you have a concern about community contributed contributions, please contact us.
Views: 772609 Amoeba Sisters
Identify species that can form intermolecular hydrogen bonds
 
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Identify species that can form intermolecular hydrogen bonds with other molecules or ions of the same type (2000 U. S. NATIONAL CHEMISTRY OLYMPIAD, LOCAL SECTION EXAM) Which species can form intermolecular hydrogen bonds with other molecules or ions of the same type? 1. HF 2. CH3F 3. NH4+ (A) 1 only (B) 3 only (C) 1 and 3 only (D) 1, 2 and 3
Views: 1 Arsitek Molekul
The most useful dye for those fabrics which can form hydrogen bonds is
 
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A..mordant dyes B..vat dyes C..acid dyes D..direct dyes
Views: 10 MyProgressCard
Types of Bond: Ionic, Covalent, Coordinate, and Hydrogen Bonds
 
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Types of Bond in chemistry are explained in this video. The explanation of chemical bonding and different types of chemical bonds that are explained in this video include ionic bonds, covalent bonds, coordinate bonds, and hydrogen bonds. Ionic Bond: Ionic bonding is seen when two atoms form a bond by donating or accepting electrons. In this type of chemical bonding, there is an electrostatic attraction between the ions which are oppositely charged. Covalent Bond: In covalent bonding, two atoms share electrons to be able to attain the configuration of their nearest noble gas. It is also called a molecular bond and is characterized by electrons sharing between atoms. Coordinate bond: In the case of coordinate bonding, both the electrons that form the bond come from the same atom. Coordinate bond is also known as a coordinate covalent bond or a dative covalent bond. Hydrogen Bond: Hydrogen bonding is a type of electrostatic attraction and is seen when a hydrogen atom which is bonded to a highly electronegative atom (like Nitrogen, Oxygen, Fluorine) comes close to another adjacent atom having a lone pair of electrons. Get more information about the types of bond here- https://byjus.com/chemistry/ionic-covalent-and-coordinate-bond/ Thank you for watching. If you liked this video, please subscribe to our channel and press the like button. Click on the bell icon to turn on notifications and you will never miss out on our latest videos! Explore more content like this on our channel. Still have a doubt about this topic? Or Have an idea/ suggestion for a new video? Please comment below.
Views: 29801 BYJU'S
Hydrogen Bonds
 
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This video introduces hydrogen bonds. Table of Contents: 00:29 - What I want you to be able to do with today’s information: 00:38 - 06:27 - Hydrogen Bonding 07:39 - 08:42 - Hydrogen Bonding 09:15 - 10:10 - An σ-helix is an important secondary structure type in which the peptide chain is held in a spiral arrangement by hydrogen bonds between amino acids that are close together. 10:32 - A β-pleated sheet is an important secondary structure type in which the peptide chain is held fully extended by hydrogen bonds between amino acids that are far apart. 10:59 - Notice that there are multiple secondary structures 11:31 -
Views: 499 Jay Shore