Write the reaction equation S – SO2 – H2SO4 – Na2SO4 – Fe2 (SO4) 3 – H2SO4 – SO2

1)S+O2=SO2
2)SO2+H2=H2SO
3)H2SO+2*NaO=Na2SO4+H2|
4)3*Na2SO4+2*Fe=Fe2(SO4)3+3*Na2
5)Fe2(SO4)3+3*H2=3*H2SO4+2*Fe
6)H2SO4=SO2+H2O



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