Salt can be separated from its solution (salt dissolved in water), because

Options

A. mixing of salt in water is a change that can be reversed by heating and melting of salt.
B. mixing of salt in water is a change that cannot be reversed.
C. mixing of salt in water is a permanent change.
D. mixing of salt in water is a change that can be reversed by evaporation.

Explanation

**Step-by-Step Solution:**

1. **Understanding the Solution**: When salt is dissolved in water, it forms a solution. In this solution, the salt particles are evenly distributed throughout the water.

2. **Identifying the Type of Change**: The mixing of salt in water is a physical change, not a chemical change. This means that the salt does not change its chemical structure when it dissolves.

3. **Reversibility of the Change**: A key characteristic of physical changes is that they can often be reversed. In the case of salt and water, the process of dissolving salt in water is reversible.

4. **Separation Method**: To separate the salt from the water, we can use evaporation. When we heat the solution, the water will evaporate, leaving the salt behind. This is because salt has a much higher boiling point than water and does not evaporate with it.

5. **Conclusion**: Therefore, salt can be separated from its solution in water because the change of dissolving salt is reversible and can be reversed by evaporation.

**Final Answer**: Salt can be separated from its solution (salt dissolved in water) because the change is reversible and can be reversed by evaporation.

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