Complete and balance the following equations :
`(b) KMnO_(4) overset( heat ) (to)`

Explanation

To complete and balance the equation for the thermal decomposition of potassium permanganate (KMnO₄), we can follow these steps:

### Step 1: Write the unbalanced equation
The initial unbalanced equation for the thermal decomposition of potassium permanganate is:
\[ \text{KMnO}_4 \xrightarrow{\text{heat}} \]

...