Chapter 5, Problem 44RQ

Balance the following equations for reactions occurring in an acidic solution.

$\begin{array}{l}\left(\text{a}\right){\text{NO}}_3^{-}\text{+ Zn }\stackrel{}{\to }{\text{NH}}_4^{+}{\text{ + Zn}}^{\text{2+}}\hfill \\ \left(\text{b}\right){\text{ Cr}}^{\text{3+}}{\text{+ BiO}}_3^{-}\stackrel{}{\to }{\text{ Cr}}_{\text{2}}{\text{O}}_7^{2-}{\text{ + Bi}}^{\text{3+}}\hfill \\ \left(\text{c}\right){\text{ I}}_{\text{2}}{\text{+ OCl}}^{\text{-}}\stackrel{}{\to }{\text{IO}}_3^{-}{\text{ + Cl}}^{\text{-}}\hfill \\ \left(\text{d}\right){\text{ Mn}}^{\text{2+}}{\text{+BiO}}_3^{-}\stackrel{}{\to }{\text{MnO}}_4^{-}{\text{ +Bi}}^{\text{3+}}\hfill \end{array}$