Chapter 7.6, Problem 7.47PP

In each of the following, identify the reactant that is oxidized and the reactant that is reduced:

a. $\text{Zn}(s)+{\text{ Cl}}_{\text{2}}\left(\text{g}\right)\to {\text{ZnCl}}_{\text{2}}(s)$
b. ${\text{Cl}}_{\text{2}}\left(g\right)+\text{ 2NaBr}(aq)\to \text{2NaC1}(aq)+{\text{Br}}_{\text{2}}\left(l\right)$
c. $\text{2PbO}(s)\to \text{2Pb}(s)+{\text{ O}}_{\text{2}}\left(\text{g}\right)$
d. ${\text{2Fe}}^{\text{3+}}(aq)+{\text{ Sn}}^{\text{2+}}(aq)\to {\text{2Fe}}^{\text{2+}}(aq)+{\text{ Sn}}^{\text{4+}}(aq)$