Question

What happen when carbon dioxide gas is dissolved in water

Answer 1

Answer:

When carbon dioxide dissolved in water carbonic acid is formed

CO2 + H2O ---> H2CO3

Answer 2

Explanation:

Co2 can exist solvated in water as CO2 but some (most) molecules will actually react with a water molecule to form H2CO3 which, in solution, will dissociate like an acid (in fact, H2CO3 is carbonic acid). So a CO2 solution of CO2 and water will be slightly acidic which is why sparkling water has a salty/sour taste.