Complete and balance the following equations :
`(a) MnO_(4)^(2-) + H^(+) to`

Explanation

To complete and balance the equation for the reaction of \( \text{MnO}_4^{2-} \) with \( \text{H}^+ \), we will follow these steps:

### Step 1: Identify the reactants and products
The reactants are \( \text{MnO}_4^{2-} \) and \( \text{H}^+ \). We need to determine the products of this reaction. The manganese in \( \text{MnO}_4^{2-} \) can be reduced to a lower oxidation state.

### Step 2: Determine the oxidation states
- In \( \text{MnO}_4^{2-} \), the oxidation state of manganese (Mn) can be calculated as follows:
\[
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