`Na_(2)CO_(3)` does not decompose on heating whereas `CaCO_(3)` decomposes . Why ?

Explanation

To understand why \( \text{Na}_2\text{CO}_3 \) does not decompose on heating while \( \text{CaCO}_3 \) does, we can analyze the concept of polarization and the properties of the cations involved.

### Step-by-Step Solution:

1. **Identify the Compounds**:
- We are comparing two compounds: \( \text{Na}_2\text{CO}_3 \) (sodium carbonate) and \( \text{CaCO}_3 \) (calcium carbonate).

2. **Understand the Cations**:
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