Using the ion-electron (half reaction) method, balance the f…

Using the ion-electron (half reaction) method, balance the following two redox reactions in the indicated pH. I) Zn(s) + NO3ˉ(aq)  —–>  Zn2+(aq)  +  N2(g)   [Acidic media] What was the stoichiometric coefficient for Zn2+(aq) and how many molecules of water are in the final balanced reaction? [a] II) SO32ˉ(aq) + Cl2(g)  ——>  SO42ˉ(aq)  +  Clˉ(aq)  [basic media]   What was the stoichiometric coefficient for SO32ˉ(aq) and how many mol of hydroxide ions are in the final balanced reaction? [b]