Chapter 5.4, Problem 5.15P

Identify the species that is oxidized and the species that is reduced in each reaction. In part (a), the oxide anion $\left({\text{O}}^{2-}\right)$ is unchanged in the reaction.

1. $\text{Zn}+\text{Hgo}\to \text{ZnO}+\text{Hg}$
2. ${\text{C}}_{\text{2}}{\text{H}}_{\text{4}}{\text{O}}_{\text{2}}+2\to {\text{C}}_{\text{2}}{\text{H}}_{\text{6}}\text{O}+{\text{H}}_{\text{2}}\text{O}$