Why is sodium chloride less soluble in heavy water than in ordinary water ?

Explanation

To understand why sodium chloride (NaCl) is less soluble in heavy water (deuterium oxide, D2O) than in ordinary water (H2O), we can break down the explanation into several steps:

### Step-by-Step Solution:

1. **Understanding Sodium Chloride (NaCl)**:
- Sodium chloride is an ionic compound composed of sodium (Na⁺) and chloride (Cl⁻) ions. In a solid state, these ions are held together by strong electrostatic forces known as lattice energy.

2. **Dissolution Process**:
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