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Complete and balance each of the following equations for gas-evolutions. Express answer as a chemical equation. Identify all the phases in your answer.

HCl(aq)+K2SO3(aq)-->

HCl(aq)+KHCO3(aq)-->

HC2H3O2(aq)+NaHSO3(aq)-->

(NH4)2SO4(aq)+KOH(aq)-->

1 answer

2HCl + K2SO3 ==> H2SO3 + 2KCl

I shall be happy to explain what you don't understand about the others.