Balance the following chemical equation:
`Pb(NO_(3))_(2)(s)overset("Heat")rarrPbO(s)+NO_(2)(g)+O_(2)(g)`

Explanation

To balance the chemical equation for the decomposition of lead(II) nitrate, we will follow these steps:

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

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