What is observed when 2 mL of dilute hydrochloric acid is added to 1 g of sodium carbonate taken in a clean and dry test tube? Write chemical equation for the reaction involved.

Explanation

To solve the question, we need to determine what happens when dilute hydrochloric acid is added to sodium carbonate and write the chemical equation for the reaction involved.

### Step-by-Step Solution:

1. **Identify the Reactants**:
- We have dilute hydrochloric acid (HCl) and sodium carbonate (Na2CO3).

2. **Understand the Reaction**:
...