Reaction of `Br_(2)` with `Na_(2)CO_(3)` in aqueous solution given sodium bromide and sodium bromate with evolution of `CO_(2)` gas. The number of sodium bromide molecules involved in the balanced chemical equation is

Explanation

To solve the problem, we need to balance the chemical equation for the reaction between bromine (Br₂) and sodium carbonate (Na₂CO₃) and then determine the number of sodium bromide (NaBr) molecules produced.

### Step-by-Step Solution:

1. **Write the Unbalanced Chemical Equation:**
The reaction can be represented as:
\[
\text{Br}_2 + \text{Na}_2\text{CO}_3 \rightarrow \text{NaBr} + \text{NaBrO}_3 + \text{CO}_2
...