What happens when mercuric oxide is subjected to heating?

Explanation

**Step-by-Step Solution:**

1. **Identify the Compound**: The compound in question is mercuric oxide, which has the chemical formula HgO.

2. **Heating Process**: When mercuric oxide (HgO) is subjected to heating, it undergoes a chemical reaction known as decomposition.

3. **Decomposition Reaction**: The decomposition of mercuric oxide can be represented by the following chemical equation:
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