(A) H 3 PO 4 and
(B) and
(C) and
(D) and H 3 PO 4
12 .    In  aqueous solution,   pyrophosphate   will    likely:(A)  form   insoluble   complexes.
(B)  be stable  and inert.
(C)  degrade    into    inorganic   phosphate.
(D)  decrease   the polarity    of  the solvent.
13 .    What    would   be  the charge  of  aspartic    acid    at  pH  7?(A)  Neutral
(B)  Negative
(C)  Positive
(D)  There  is  not enough  information to  answer  the question.
14 .    When    a   bond    is  created between two nucleotide  triphosphates   in  DNA synthesis,  the small
molecule    released    from    this    reaction    is:(A)  pyrophosphate.
(B)  inorganic  phosphate.
(C)  ATP.
(D)  organic    phosphate.
15 .    The hydrogens   of  phosphoric  acid    have    pKa values  that: