Show with balanced equations what happens when the following are mixed.
(i). Aqueous solution of potassium manganate and acid.
(ii). Aqueous solution of potassium chromate and acid.

Explanation

To solve the question, we will write balanced chemical equations for the reactions that occur when an aqueous solution of potassium manganate and an aqueous solution of potassium chromate are mixed with acid.

### Step 1: Reaction of Potassium Manganate with Acid

1. **Identify the reactants**: The reactants are potassium manganate (KMnO4) and an acid (commonly sulfuric acid, H2SO4).
2. **Write the unbalanced equation**:
\[
\text{KMnO}_4 + \text{H}^+ \rightarrow \text{MnO}_4^- + \text{H}_2\text{O}
...