Aqueous sulfurous acid

Question

H2SO3
and aqueous sodium chloride are formed by the reaction of aqueous sodium sulfite
Na2SO3
and aqueous hydrochloric acid
HCl
.
Write a balanced chemical equation for this reaction.

Answer 1

2HCl (aq) + Na2SO3(aq)>>H2SO3(aq)+2NaCl(aq)

Answer 2

2HCl(aq)+Na2SO3(aq)-->2NaCl(aq)+H2SO3(aq)

Answer 3

Na2SO3(aq)+2HCI(aq)-->2NaCl(aq)+H2SO3(aq)