1. Fe+S=FeS
2. FeS+2HNO3=H2S+Fe(NO3)2
3. H2S+Na2CO3=Na2S+CO2+H2O
4. Na2S+ZnSO3=ZnS+Na2SO3
1.S+FE=FES
2.FES+2HCL=H2S+FECL2
3.H2S+NA2O=NA2S+H2O
4.NA2S+H2SO3=NA2SO3+H2S
1. Fe+S=FeS
2. FeS+2HNO3=H2S+Fe(NO3)2
3. H2S+Na2CO3=Na2S+CO2+H2O
4. Na2S+ZnSO3=ZnS+Na2SO3
1.S+FE=FES
2.FES+2HCL=H2S+FECL2
3.H2S+NA2O=NA2S+H2O
4.NA2S+H2SO3=NA2SO3+H2S