Write balanced net ionic equations for the following reactions in basic solution. Express your answer as a chemical equation. Identify all of the phases in your answer.
a) S2O3 2-(aq) + I2(aq)-->S4O6 2-(aq) + I-(aq)
b) Mn 2+(aq) + H2O2(aq)-->MnO2(s) + H2O(l)
c) Zn(s) + NO3-(aq)-->NH3(aq) + Zn(OH4) 2-(aq)
d) Bi(OH)3(s) + Sn(OH)3 -(aq)-->Bi(s) + Sn(OH)6 2-(aq)