Question

Find the value of 'b' for the following half equation.
$M{n}^{2+}+x{H}_{2}O⟶Mn{O}_2+a{H}^{+}+b{e}^{-}$

Answer 1

Answer: 2

Balanced half equation is
$M{n}^{2+}+2H_{2}O⟶Mn{O}_2+4H^{+}+2e^{-}$
Value of ' $b$ ' is $2$ .