Balance each of the following half-reactions in acidic solution:
a. Zn(s) → Zn2+ (aq)
b. SnO22−(aq) → SnO32−(aq)
c. SO32−(aq) → SO42−(aq)
d. NO3−(aq) → NO(g)
In each of the following reactions, identify the reactant that is oxidized and the reactant that is reduced:
a. Zn(s) + Cl2(g) → ZnCl2(s)
b. Cl2(g) + 2NaBr(aq) → 2NaCl(aq) + Br2(l)
c. 2Pb(s) + O2(g)→ 2PbO(s)
d. 2Fe3+ (aq) + Sn2+ (aq)→ 2Fe2+ (aq) + Sn4+ (aq)
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