S+H2=H2S(-2)
2H2S+3O2=2SO2+2H2O...(+4)
2SO2+O2=2SO3...(+6)
SO3+H2O=H2SO4...(SO4(2-))
H2SO4+Ba(OH)2=BaSO4+2H2O...( BaSO4)
S+H2=H2S(-2)
2H2S+3O2=2SO2+2H2O...(+4)
2SO2+O2=2SO3...(+6)
SO3+H2O=H2SO4...(SO4(2-))
H2SO4+Ba(OH)2=BaSO4+2H2O...( BaSO4)