Answer:
When CO₂ dissolves in water, it reacts with water to form a weak acid called Carbonic Acid (H₂CO₃).
Explanation:
- On dissolving carbon dioxide in water, carbonic acid is formed as some part of the dissolved Carbon dioxide reacts with water.
- Equation: CO₂(aq) + H₂O→ H₂CO₃
- The formation of Carbonic acid makes the water acidic.
- Carbonic acid is a weak acid and partially dissociates to carbonate and bicarbonate ions.
