有关硫元素的所有化学方程式
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S+H2===H2S
S+2Cu===Cu2S
3S+2Al===Al2S3
S+Zn===ZnS
S+6HNO3(浓)===H2SO4+6NO2+2H2O
3S+4 HNO3(稀)===3SO2+4NO+2H2O
3S+6NaOH===2Na2S+Na2SO3+3H2O
S+Fe=FeS
S+3C+2KNO3=K2S+N2↑+3CO2↑
S+H2= H2S(高温加热)
3S+6KOH=2K2S+K2SO3+3H2O
2H2S+O2=2H2O+2S(不完全燃烧)
2H2S+3O2=2H2O+2SO2(完全燃烧)
2H2S+SO2=3S↓+2H2O
H2S+NaOH=NaHS+H2O
H2S+2NaOH=Na2S+2H2O
H2S+2HNO3=2H2O+2NO2↑+S↓
H2S+CuSO4=H2SO4+CuS↓(黑色)
H2S+2FeCl3=2FeCl2+S↓+2HCl
H2S+Fe2(SO4)3=2FeSO4+S↓+H2SO4
SO2+H2O=H2SO3
SO2+CaO=CaSO3
SO2+NaOH=NaHSO3
SO2+2NaOH=Na2SO3+H2O
SO2+Ba(OH)2=BaSO3↓+H2O
5SO2+2H2O+2KMnO4=2H2SO4+2MnSO4+K2SO4
SO3+H2O=H2SO4
SO3+Na2O=Na2SO4
2H2SO3+O2=2H2SO4
H2SO3+2NaOH=Na2SO3+2H2O
H2SO4(稀)+Fe=FeSO4+H2↑
2H2SO4(浓)+C =CO2↑+2H2O+2SO2↑
2H2SO4(浓)+Cu =CuSO4+SO2↑+2H2O
H2SO4(稀)+Zn=ZnSO4+H2↑
2H2SO4(浓)+Zn= ZnSO4+SO2↑+2H2O
6H2SO4(浓)+2Fe =Fe2(SO4)3+3SO2↑+6H2O
H2SO4+2NH3=(NH4)2SO4
H2SO4+NH3=NH4HSO4
3H2SO4+Al2O3=Al2(SO4)3+3H2O
3H2SO4+Fe2O3=Fe2(SO4)3+3H2O
H2SO4+2NaOH=Na2SO4+2H2O
H2SO4+NaOH(不足)=NaHSO4+H2O
H2SO4+Ba(OH)2=BaSO4↓+2H2O
H2SO4+Cu(OH)2=CuSO4+2H2O
H2SO4+Na2SO3=Na2SO4+H2O+SO2↑
H2SO4+2NaHCO3=Na2SO4+2H2O+2CO2↑
H2SO4+Na2CO3=Na2SO4+H2O+CO2↑
H2SO4+Na2SiO3=Na2SO4+H2SiO3↓
H2SO4+CaCO3=CaSO4+H2O+CO2↑
ZnS+2HCl=ZnCl2+H2S↑
Na2S+CuSO4=CuS↓+Na2SO4
Al2S3+6H2O=3H2S↑+2Al(OH)3↓
基本要求掌握的
(1)氧化性
1.与金属(条件都为加热)
Fe+S=FeS
Cu+S=Cu2S
2Na+S=Na2S
2AL+3S=AL2S3
Hg+S=HgS
2.与H2
S+H2=H2S(加热)
(2)还原性
S+O2=So2(点燃)
S+2Cu===Cu2S
3S+2Al===Al2S3
S+Zn===ZnS
S+6HNO3(浓)===H2SO4+6NO2+2H2O
3S+4 HNO3(稀)===3SO2+4NO+2H2O
3S+6NaOH===2Na2S+Na2SO3+3H2O
S+Fe=FeS
S+3C+2KNO3=K2S+N2↑+3CO2↑
S+H2= H2S(高温加热)
3S+6KOH=2K2S+K2SO3+3H2O
2H2S+O2=2H2O+2S(不完全燃烧)
2H2S+3O2=2H2O+2SO2(完全燃烧)
2H2S+SO2=3S↓+2H2O
H2S+NaOH=NaHS+H2O
H2S+2NaOH=Na2S+2H2O
H2S+2HNO3=2H2O+2NO2↑+S↓
H2S+CuSO4=H2SO4+CuS↓(黑色)
H2S+2FeCl3=2FeCl2+S↓+2HCl
H2S+Fe2(SO4)3=2FeSO4+S↓+H2SO4
SO2+H2O=H2SO3
SO2+CaO=CaSO3
SO2+NaOH=NaHSO3
SO2+2NaOH=Na2SO3+H2O
SO2+Ba(OH)2=BaSO3↓+H2O
5SO2+2H2O+2KMnO4=2H2SO4+2MnSO4+K2SO4
SO3+H2O=H2SO4
SO3+Na2O=Na2SO4
2H2SO3+O2=2H2SO4
H2SO3+2NaOH=Na2SO3+2H2O
H2SO4(稀)+Fe=FeSO4+H2↑
2H2SO4(浓)+C =CO2↑+2H2O+2SO2↑
2H2SO4(浓)+Cu =CuSO4+SO2↑+2H2O
H2SO4(稀)+Zn=ZnSO4+H2↑
2H2SO4(浓)+Zn= ZnSO4+SO2↑+2H2O
6H2SO4(浓)+2Fe =Fe2(SO4)3+3SO2↑+6H2O
H2SO4+2NH3=(NH4)2SO4
H2SO4+NH3=NH4HSO4
3H2SO4+Al2O3=Al2(SO4)3+3H2O
3H2SO4+Fe2O3=Fe2(SO4)3+3H2O
H2SO4+2NaOH=Na2SO4+2H2O
H2SO4+NaOH(不足)=NaHSO4+H2O
H2SO4+Ba(OH)2=BaSO4↓+2H2O
H2SO4+Cu(OH)2=CuSO4+2H2O
H2SO4+Na2SO3=Na2SO4+H2O+SO2↑
H2SO4+2NaHCO3=Na2SO4+2H2O+2CO2↑
H2SO4+Na2CO3=Na2SO4+H2O+CO2↑
H2SO4+Na2SiO3=Na2SO4+H2SiO3↓
H2SO4+CaCO3=CaSO4+H2O+CO2↑
ZnS+2HCl=ZnCl2+H2S↑
Na2S+CuSO4=CuS↓+Na2SO4
Al2S3+6H2O=3H2S↑+2Al(OH)3↓
基本要求掌握的
(1)氧化性
1.与金属(条件都为加热)
Fe+S=FeS
Cu+S=Cu2S
2Na+S=Na2S
2AL+3S=AL2S3
Hg+S=HgS
2.与H2
S+H2=H2S(加热)
(2)还原性
S+O2=So2(点燃)
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2024-11-19 广告
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