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AP Biology Water
and the fitness of the environment
Question | Answer |
---|---|
Define cohesion | When the molecules of water want to cling together due to hydrogen bonds |
Why does water have surface tension? | Because of the hydrogen bonds |
What are hydrogen bonds? | When the negative oxygen side of one water molecule is attracted to the positive hydrogen side of the other. |
What is responsible for moderating the earth's temperature? | Water, because of its high specific heat and hydrogen bonding. |
Define hydrophilic | Any substance that has an affinity for water |
Define hydrophobic | Any substance that seem to repel water. |