What happens when magnesium oxide is dissolved in water ? Write a word equation for this process. Name the type of change which takes place.

Explanation

**Step-by-Step Solution:**

1. **Understanding the Reactants**: When magnesium oxide (MgO) is dissolved in water (H₂O), a reaction occurs. Magnesium oxide is a white solid, and water is a liquid.

2. **The Reaction**: When magnesium oxide is added to water, it reacts to form magnesium hydroxide (Mg(OH)₂). This is a chemical reaction where a new substance is produced.

3. **Writing the Word Equation**: The word equation for this reaction can be written as:
- Magnesium Oxide + Water → Magnesium Hydroxide
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