BIOL 150B Chapter Notes - Chapter 2: Ionic Compound, Electronegativity, Hydrogen Bond
13 Jan 2016
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Document Summary
Water: the simplest example of hydrogen bonding, in which the bonds are constantly breaking & re-forming due to the molecules moving: contains polar covalent bonds, cohesion: attraction between molecules of the same kind. O has a + charge than h = electrons spend more time around o. Can therefore break down other polar molecules. Most water molecules are bonded to other water molecules. Water cohesion is stronger than any other liquid. Unusually high in water due to hydrogen bonds. Aqueous solution: water solvent: hydrophilic: polar or charged molecules that are soluble in water (ex. salt, hydrophobic: large non-polar molecules that do not dissolve in water (ex. fat) Non-polar molecules cluster together because they are excluded from the water molecules forming hydrogen bonds with each other: moderates temperatures: maintains our core temperature in order to. Has stable hydrogen bonds due to the molecules not moving.
