Quiz 2 2006 key

Quiz 2 2006 key - Quiz 2 Fall 2006 Bio 181, Sections 7, 8H...

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Quiz 2 Fall 2006 Bio 181, Sections 7, 8H Key Correct answers are highlighted in Bold font 1. True or false: Hydrogen bonds can form within the same molecule, provided it is large enough and that it has functional groups capable of forming hydrogen bonds. True! 2. True or false: Water is a weak acid because two water molecules can react, forming a hydroxide ion (OH-) and a hydronium ion (H3O+). True! (Only a fraction of the water molecules will be dissociated in such a way at any time, but nevertheless, water is indeed a weak acid.) 3. True or False: Carboxyl groups are acidic because they contain a number of nonpolar chemical bonds. False! (Carboxyl groups are acidic because they readily dissociate to release a proton, H+.) 4. True or False: Amino groups are basic because they contain -OH groups, which can hydrogen bond. False! Amino groups ARE basic, but the definition of a base is that it can accept a free proton, H+. Amino groups don’t actually contain any –OH groups anyway. 5.
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This test prep was uploaded on 04/02/2008 for the course BIO 181 taught by Professor Jorstad during the Fall '07 term at Arizona.

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Quiz 2 2006 key - Quiz 2 Fall 2006 Bio 181, Sections 7, 8H...

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