Объяснение:
2H2S+O2=2S+2H2O
Fe+S=FeS
4FeS+7O2=2Fe2O3+4SO2
SO2+H2O=H2SO3
H2S+2NaOH=Na2S+2H2O
S+2Na=Na2S
2Н2S+О2=2S+2H2O
Fe+S =FeS
H2S+ 2NaOH=Na2S+2H2O
4FeS+702=2Fe2O3+4SO2
Объяснение:
2H2S+O2=2S+2H2O
Fe+S=FeS
4FeS+7O2=2Fe2O3+4SO2
SO2+H2O=H2SO3
H2S+2NaOH=Na2S+2H2O
S+2Na=Na2S
2Н2S+О2=2S+2H2O
Fe+S =FeS
SO2+H2O=H2SO3
H2S+ 2NaOH=Na2S+2H2O
4FeS+702=2Fe2O3+4SO2
S+2Na=Na2S