When water reacts with carbon dioxide in air or soil it forms what kind of acid?

1 Answer
Jun 9, 2016

Answer:

It forms carbonic acid #H_2CO_3#

Explanation:

#CO_2+H_2Orightleftharpoons2H^+ +CO_3^(2-)#

Or, to be more precise:
#CO_2+3H_2Orightleftharpoons2H_3O^+ +CO_3^(2-)#

The double arrow means that there is an equilibrium between the carbon dioxide and the acid.