What type of salts are `Na_(2)HPO_(3)` and NaHS ?

Explanation

To determine the type of salts that \( \text{Na}_2\text{HPO}_3 \) and \( \text{NaHS} \) are, we can analyze their structures and the acids from which they are derived.

### Step-by-Step Solution:

1. **Identify the acids from which the salts are derived:**
- \( \text{Na}_2\text{HPO}_3 \) is derived from phosphorous acid \( \text{H}_3\text{PO}_3 \).
- \( \text{NaHS} \) is derived from hydrogen sulfide \( \text{H}_2\text{S} \).

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