molecular solution formation in water; predominate acid-base reaction?

Question

1)Which of the following forms a molecular solution in water?
a)NH4CH3COO
b)C6H12O6
c)Na3PO4
d)SrSO4

2) The predominant acid-base reaction between H2O22 and H2O is
a)H2O22 + H2O --> H3O2+ + OH-
b)H2O22 + H2O --> 3OH- + H+
c)H2O22 + H2O --> H3O+ + HO2-
d)H2O22 + H2O --> 2H2O + O2-

explanations would be greatly appreciated

Answer 1

1. b (all the others are ionic)
2. I think you meant to type hydrogen peroxide, in which case the answer is c - it's slightly acidic.