Balance the following chemical equation by partial equation method.
`Cu+HNO_(3)rarrCu(NO_(3))_(2)+NO+H_(2)O`

Explanation

To balance the chemical equation `Cu + HNO3 → Cu(NO3)2 + NO + H2O` using the partial equation method, we will follow these steps:

### Step 1: Identify the Oxidation and Reduction Reactions
We need to break down the overall reaction into half-reactions. Here, copper (Cu) is oxidized to copper(II) nitrate (Cu(NO3)2), and nitric acid (HNO3) is reduced to nitrogen monoxide (NO) and water (H2O).

### Step 2: Write the Half-Reactions
1. **Oxidation Half-Reaction**:
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