Chapter 16, Problem 38E

For each of the reactions in Problem 36, identify the oxidizing agent and the reducing agent.

For each reaction, identify the substance being oxidized and the substance being reduced.

a. $\text{Mg}(s)+{\text{Br}}_2(g)\to {\text{MgBr}}_{\text{2}}(s)$

b. ${\text{2Cr}}^{3+}(aq)+3\text{Mn}(s)\to 2\text{Cr}(s)+3{\text{Mn}}^{\text{2+}}(aq)$

c. ${\text{2H}}^{+}(aq)+\text{Ni}(s)\to {\text{H}}_2(g)+{\text{Ni}}^{\text{2+}}(aq)$