1、氧化性：

F2+H2===2HF(阴暗处爆炸)

F2+Xe(过量)==XeF2

2F2(过量)+Xe==XeF4(XeF4是强氧化剂，能将Mn2+氧化为MnO4)

nF2+2M===2MFn(M表示大部分金属)

2F2+2H2O===4HF+O2(水是还原剂)

2F2+2NaOH===2NaF+OF2+H2O

F2+2NaCl===2NaF+Cl2

F2+2NaBr===2NaF+Br2

F2+2NaI===2NaF+I2

7F2(过量)+I2===2IF7

F2+Cl2(等体积)===2ClF(ClF属于类卤素：ClF+H2O==HF+HClO)

3F2(过量)+Cl2===2ClF3(ClF3+3H2O==3HF+HClO3)

Cl2+H22HCl(将H2在Cl2点燃;混合点燃、加热、光照发生爆炸)

3Cl2+2P2PCl3Cl2+PCl3PCl5Cl2+2Na2NaCl

3Cl2+2Fe2FeCl3Cl2+CuCuCl2

Cl2+2FeCl2===2FeCl3(在水溶液中：Cl2+2Fe2+===2Fe3++3Cl)

Cl2+2NaBr===2NaCl+Br2Cl2+2Br=2Cl+Br2

Cl2+2KI===2KCl+I2Cl2+2I=2Cl+I2

3Cl2(过量)+2KI+3H2O===6HCl+KIO3

3Cl2+I+3H2O=6H++6Cl+IO3

5Cl2+I2+6H2O===2HIO3+10HCl

5Cl2+I2+6H2O=10Cl+IO3+12H+

Cl2+Na2S===2NaCl+SCl2+S2=2Cl+S

Cl2+H2S===2HCl+S(水溶液中：Cl2+H2S=2H++2Cl+S Cl2+SO2+2H2O===H2SO4+2HCl

Cl2+SO2+2H2O=4H++SO42+2Cl

Cl2+H2O2===2HCl+O2Cl2+H2O2=2H++Cl+O2

2O2+3FeFe3O4O2+K===KO2

S+H2H2S2S+CCS2S+ZnZnS

S+FeFeS(既能由单质制取，又能由离子制取)

S+2CuCu2S(只能由单质制取，不能由离子制取)

3S+2AlAl2S3(只能由单质制取，不能由离子制取)

N2+3H22NH3N2+3MgMg3N2N2+3CaCa3N2

N2+3BaBa3N2N2+6Na2Na3NN2+6K2K3N

N2+6Rb2Rb3NN2+2Al2AlN

P4+6H24PH3P+3NaNa3P2P+3ZnZn3P2

H2+2Li2LiH

2、还原性

S+O2SO2

S+H2SO4(浓)3SO2+2H2O

S+6HNO3(浓)H2SO4+6NO2+2H2O

S+4H++6==6NO2+2H2O+

3S+4HNO3(稀)3SO2+4NO+2H2O

3S+4H++43SO2+4NO+2H2O

N2+O22NO

4P+5O2P4O10(常写成P2O5)

2P+3X22PX3(X表示F2，Cl2，Br2) PX3+X2PX5

P4+20HNO3(浓)4H3PO4+20NO2+4H2O

C+2F2CF4

C+2Cl2CCl4

C+O2(足量)CO2

2C+O2(少量)2CO

C+CO22CO

C+H2OCO+H2(生成水煤气)

2C+SiO2Si+2CO(制得粗硅)

Si(粗)+2Cl2SiCl4

(SiCl4+2H2===Si(纯)+4HCl)

Si(粉)+O2SiO2

Si+CSiC(金刚砂)

Si+2NaOH+H2O==Na2SiO3+2H2(Si+2OH+H2O=+2H2)

3、歧化反应

Cl2+H2O==HCl+HClO(加碱或光照促进歧化：(Cl2+H2OH++Cl+HClO)

Cl2+2NaOH==NaCl+NaClO+H2O(Cl2+2OH=Cl+ClO+H2O)

Cl2+2Ca(OH)2==CaCl2+Ca(ClO)2+2H2O(Cl2+2OH=Cl+ClO+H2O)

3Cl2+6KOH(浓)5KCl+KClO3+3H2O(3Cl2+6OH5Cl+ClO3+3H2O)

3S+6NaOH2Na2S+Na2SO3+3H2O(3S+6OH2S2+SO32+3H2O)

4P+3KOH(浓)+3H2O==PH3+3KH2PO2(4P+3OH+3H2O==PH3+3H2PO2)

11P+15CuSO4+24H2O==5Cu3P+6H3PO4+15H2SO4

3C+CaOCaC2+CO

3C+SiO2SiC+2CO

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