Mercuric oxide on heating decomposes to give oxygen and _____ [mercury/mercury oxide]

Explanation

To solve the question "Mercuric oxide on heating decomposes to give oxygen and _____ [mercury/mercury oxide]", we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Compound**:
- Mercuric oxide is represented by the chemical formula HgO.

2. **Understand the Decomposition Reaction**:
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