Which gas is released when you combine vinegar and baking soda in a balloon, causing it to inflate?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is Option 1 i.e. Carbon dioxide.
- When vinegar (acetic acid) is combined with baking soda (sodium bicarbonate), a chemical reaction occurs, producing carbon dioxide (CO₂) gas. The reaction is:
- CH₃COOH + NaHCO₃ → CH₃COONa + H₂O + CO₂↑.
- The released CO₂ gas fills and inflates the balloon. This reaction is often used in science experiments to demonstrate acid–base reactions and gas formation. The process is safe, easy to perform, and visually engaging, making it a popular educational activity for teaching basic chemistry concepts.