2) H2 + S = H2s
H2+2Na+SO2+2O2 =2NaHSO3
1) Zn+H2SO4(конц)-ZnSO4+H2S+H2O
2H2S + O2 = 2S + 2H2O
H2 + S = H2s
2H2 S+ ЗО2(изб) = 2H2 О + 2SO2
2) H2 + S = H2s
H2+2Na+SO2+2O2 =2NaHSO3
1) Zn+H2SO4(конц)-ZnSO4+H2S+H2O
2H2S + O2 = 2S + 2H2O
H2 + S = H2s
2H2 S+ ЗО2(изб) = 2H2 О + 2SO2