Question

balanced chemical equation of sodium carbonate on reaction with hcl in equal concentration gives sofium chloride and sodium hydrogen carbonate.

Answer 1

here is the reaction.
Still first ask ur teachers if correct or not.
It is now balanced as per ur question.

Answer 2

Hydrochloric acid & sodium carbonate react to produce sodium chloride, carbon dioxide and water. Brisk effervescence are seen due to carbon dioxide gas formation. The balanced chemical reaction is as follows:

   2 HCl +  Na2CO3  =  2NaCl + CO2 + H2O