Question

What happens when dilute hydrochloric acid is added to sodium carbonate? Write a balanced chemical equation of the reaction involved.

Answer 1

When sodium carbonate is treated with dilute hydrochloric acid, sodium chloride is formed and carbon dioxide gas is liberated. 
Na₂CO₃(s) + 2HCl(aq) →  2NaCl(aq) + CO₂(g) + H₂O(l)