Balance the equations given below :
`Pb(NO_3)_2 overset"heat"to PbO + NO_2 + O_2`

Explanation

To balance the chemical equation \( \text{Pb(NO}_3\text{)}_2 \overset{\text{heat}}{\rightarrow} \text{PbO} + \text{NO}_2 + \text{O}_2 \), we will follow these steps:

### Step 1: Write down the unbalanced equation
The unbalanced equation is:
\[ \text{Pb(NO}_3\text{)}_2 \rightarrow \text{PbO} + \text{NO}_2 + \text{O}_2 \]

### Step 2: Count the number of atoms of each element on both sides
- **Reactants**:
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