DSFS SDF Test Bank for Biochemistry 4th Edition Voet

A) hydrogen bond(s) B) rotational C) H3PO4 D) H2PO4 – E) HPO4 2– F) disordered G) positive entropy H) negative entropy I) higher electronegativity J) insoluble K) tetrahedral structure arrangement L) acid versus base M) base versus acid N) dissolved but only partially ionized 1. Translational and ______ thermal motion causes liquid water molecules to reorient approximately every 10–12 seconds. Ans: B Level of Difficulty: Easy Section: 2-1. Properties of Water 2. The 104.5° bond angle in the water molecule is the result of the ______ of electron orbitals around oxygen. Ans: K Level of Difficulty: Easy Section: 2-1. Properties of Water 3. The polarity of the O–H bond is caused by the ______ of oxygen. Ans: I Level of Difficulty: Easy Section: 2-1. Properties of Water