What happens when `CO_2` is passed through a lime water for a long duration?

Explanation

To answer the question "What happens when `CO_2` is passed through lime water for a long duration?", we can break down the process into clear steps:

### Step-by-Step Solution:

1. **Initial Reaction**:
- When carbon dioxide (CO₂) is first passed through lime water (calcium hydroxide, Ca(OH)₂), a reaction occurs.
- The chemical equation for this reaction is:
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