Identify what is being oxidized and reduced, and indicate how the oxidation numbers change.

$6H^{+}+2Mn{O}_4^{-}+5H_2{O}_{2}2M{n}^{2+}+5O_2+8H_{2}O$

is being oxidized. It is going from an oxidation number of to an oxidation number of $|0vv|.$

Mn $$ is being reduced. It is going from an oxidation number of $|+7,|$ to an oxidation number of