Chapter 4, Problem 24E

Complete and balance the following oxidation-reduction reactions, which give the highest possible oxidation state for the oxidized atoms.

(a) $\text{K}\left(s\right)+{\text{H}}_2\text{O}\left(l\right)\to$

(b) $\text{Ba}\left(s\right)+\text{HBr}\left(aq\right)\to$

(c) $\text{Sn}\left(s\right)+{\text{I}}_2\left(s\right)\to$