What is the chemical reaction between these chemicals?

Question

NH4Cl + Na2SO3
NH4Cl + NaOH
Na2SO3 + BaCl2
Na2SO3 + NaOH
H2SO4 + BaCl2
BaCl2 + NaOH

Answer 1

NH4Cl + Na2SO3 no reaction

NH4Cl + NaOH --> NH3 + H2O + NaCl

Na2SO3 + BaCl2-->BaSO3 + 2NaCl

Na2SO3 + NaOH -->I don't believe this will react.

H2SO4 + BaCl2-->2HCl + BaSO4

BaCl2 + 2NaOH -->Ba(OH)2 + 2NaCl