Copper reacts with conc. Nitric acid. Give balanced reaction.

Explanation

To balance the chemical equation for the reaction of copper with concentrated nitric acid, we will follow these steps:

### Step 1: Write the unbalanced equation
The reactants are copper (Cu) and concentrated nitric acid (HNO₃). The products of this reaction are copper(II) nitrate (Cu(NO₃)₂), nitrogen dioxide (NO₂), and water (H₂O).

The unbalanced equation is:
\[ \text{Cu (s)} + \text{HNO}_3 (aq) \rightarrow \text{Cu(NO}_3)_2 (aq) + \text{NO}_2 (g) + \text{H}_2\text{O (l)} \]

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