Hydrogen Bonds
Hydrogen bonds are weak attractions between atoms that have formed other chemical bonds. One of these atoms is electronegative, like oxygen, and has a partial negative charge. The other is a hydrogen atom that has bonded with another electronegative atom and has a partial positive charge. Hydrogen B...
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| Idioma: | Inglés |
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Cambridge, MA :
MyJoVE Corp
2016.
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| Colección: | JOVE Science Education.
Core Bio. |
| Acceso en línea: | Acceso a vídeo desde UNAV |
| Ver en Universidad de Navarra: | https://innopac.unav.es/record=b42118116*spi |
| Sumario: | Hydrogen bonds are weak attractions between atoms that have formed other chemical bonds. One of these atoms is electronegative, like oxygen, and has a partial negative charge. The other is a hydrogen atom that has bonded with another electronegative atom and has a partial positive charge. Hydrogen Bonds Control the World! Because hydrogen has very weak electronegativity when it binds with a strongly electronegative atom, such as oxygen or nitrogen, electrons in the bond are unequally shared. The other atom pulls the electrons to itself, sharing them with the hydrogen atom a smaller amount of the time. This gives the hydrogen atom a partial positive charge, causing it to be attracted to atoms with a partial negative charge. The cumulative effect of these weak bonds is life-altering, endowing water with high heat capacity, high heat of vaporization, ability to dissolve polar molecules, adhesion, cohesion, and strong surface tension. |
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| Notas: | Tít. sacado de la página de descripción del recurso. |
| Descripción Física: | 1 recurso electrónico (20 seg.) : son., col |
| Formato: | Forma de acceso: World Wide Web. |
| Público: | Para estudiantes universitarios, graduados y profesionales. |
