Aqueous carbonic acid H2CL3decomposes into carbon dioxide gas and liquid water. Write a balanced chemical equation for this reaction.

H2co3 ___> CO2 + H2o

H2CO3 (aq) ⇆ H2O (l) + CO2 (g)

Explanation:

Step 1: Data given

Aqueous carbonic acid = H2CO3

H2CO3 decomposes into CO2 and H2O

Step 2: Balancing the equation

H2CO3 (aq) ⇆ H2O (l) + CO2 (g)

We do not have to change anything in this reaction since it's already balanced.

We have 2x H on both sides (2x in H2CO3 and 2x in H2O)

We have 1x C on both sides (1x in H2CO3 and 1x in CO2)

We have 3x O on both sides (3x in H2CO3 and 1x in H2O, 2x in CO2)