pH of a `CuSO_4` solution is ____ than 7 and that of `Na_2CO_3` is ____ than 7.

Explanation

To determine the pH of `CuSO4` and `Na2CO3` solutions, we need to analyze the nature of the salts and the acids or bases they are derived from.

### Step-by-Step Solution:

1. **Identify the Components of the Salts:**
- `CuSO4` is composed of copper(II) ions (Cu²⁺) and sulfate ions (SO₄²⁻).
- `Na2CO3` is composed of sodium ions (Na⁺) and carbonate ions (CO₃²⁻).

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