Chapter 21, Problem 49E

Write plausible chemical equations for the (a) dissolving of lead(II) oxide in nitric acid; (b) heating of ${\text{SnCO}}_{\text{2}}\left(\text{s}\right)$ ; (c) reduction of lead(II) oxide by carbon; (d) reduction of ${\text{Fe}}^{\text{2}+}\left(\text{aq}\right)$ to ${\text{Fe}}^{\text{2}+}\left(\text{aq}\right)$ by ${\text{Sn}}^{\text{2}+}\left(\text{aq}\right)$ ; (e) formation of lead(II) sulfate during high-temperature roasting of lead(II) sulfide.