# What is an example of a balanced half reaction?

Jul 1, 2016

Oxidation of $N {H}_{3}$ to $N {O}_{3}^{-}$?
${N}^{- I I I}$ is oxidized to ${N}^{+ V}$
$N {H}_{3} + 3 {H}_{2} O \rightarrow N {O}_{3}^{-} + 8 {e}^{-} + 9 {H}^{+}$
Is this balanced with respect to mass and charge? If not, it should be. All I did was account for the difference in oxidation numbers by electrons, and then add water or ${H}^{+}$ to balance oxygen and hydrogen.