Explain why `CO_(3)^(2-)` ion cannot be represented by a single Lewis structure. How can it be best represented ?

Explanation

To explain why the carbonate ion \( \text{CO}_3^{2-} \) cannot be represented by a single Lewis structure, we need to understand the concept of resonance and how it applies to this ion.

### Step-by-Step Solution:

1. **Understanding the Lewis Structure of \( \text{CO}_3^{2-} \)**:
- The carbonate ion consists of one carbon atom and three oxygen atoms. The carbon atom is centrally located, and it is bonded to the three oxygen atoms.
- The total charge of the ion is -2, which means there are two extra electrons in the structure.

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