Fe + S = FeS FeS + 2HCl = FeCl2 + H2SH2S+3H2SO4=4SO2+4H2OSO2 + 2NaOH = Na2SO3 + H2O Na2SO3 + CaCl2 = CaSO3 + 2NaCl
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Verified answer
Fe + S = FeS
FeS + 2HCl = FeCl2 + H2S
H2S+3H2SO4=4SO2+4H2O
SO2 + 2NaOH = Na2SO3 + H2O
Na2SO3 + CaCl2 = CaSO3 + 2NaCl