Chapter 5, Problem 37E

Balance these equations for redox reactions occurring in acidic solution.
a. ${\text{MnO}}_4+\text{I}\to {\text{Mn}}^{2+}+{\text{I}}_{\text{2}}\left(\text{s}\right)$
b. ${\text{BrO}}_3+{\text{N}}_2{\text{H}}_4\to {\text{Br}}^{-}+{\text{N}}_{\text{2}}\left(\text{g}\right)$
c. ${\text{VO}}_4^3+{\text{Fe}}^{2+}\to {\text{Vo}}^{2+}+{\text{Fe}}^{3+}$
d. ${\text{UO}}^{2+}+{\text{NO}}_3\to {\text{UO}}_2^{2+}+\text{NO}\left(g\right)$