Complete the missing components/variables given as x and y in the following reactions
`Pb(NO_(3))_(2)(aq) +2KI (aq) to PbI_(2) (x) +2KNO_(3)(y)`

Explanation

To complete the missing components/variables given as x and y in the following reaction:

**Reaction:**
\[ \text{Pb(NO}_3\text{)}_2 (aq) + 2 \text{KI} (aq) \rightarrow \text{PbI}_2 (x) + 2 \text{KNO}_3 (y) \]

### Step-by-Step Solution:

1. **Identify the Reactants and Products:**
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