цепочка превращения
fe fes h2s s so2 so3 h2so4 BaSo4
Fe+S=FeSFeS+H2O=H2S+FeO
H2S+O2=S+H2O
S+O2=SO2 или S + 2H2SO4 = 2H2O + 3SO2
SO2 + O3 = SO3 + O2
SO3 + H2O = H2SO4
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Answers & Comments
Fe+S=FeS
FeS+H2O=H2S+FeO
H2S+O2=S+H2O
S+O2=SO2 или S + 2H2SO4 = 2H2O + 3SO2
SO2 + O3 = SO3 + O2
SO3 + H2O = H2SO4