Explain the action of Ca on acetic acid.

Explanation

### Step-by-Step Solution

1. **Identify the Reactants**:
The reaction involves calcium (Ca) and acetic acid (CH₃COOH). Acetic acid is a weak organic acid.

2. **Write the Reaction**:
When calcium reacts with acetic acid, it displaces hydrogen from the acid. The balanced chemical equation for the reaction is:
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