2F2(过量)+Xe==XeF4 (XeF4是强氧化剂，能将Mn2+氧化为MnO4–)
2F2+2H2O===4HF+O2 (水是还原剂)
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+H2 2HCl (将H2在Cl2点燃；混合点燃、加热、光照发生爆炸)
3Cl2+2P 2PCl3 Cl2+PCl3 PCl5 Cl2+2Na 2NaCl
3Cl2+2Fe 2FeCl3 Cl2+Cu CuCl2
Cl2+2FeCl2===2FeCl3 (在水溶液中：Cl2+2Fe2+===2Fe3++3Cl )
Cl2+2NaBr===2NaCl+Br2 Cl2+2Br =2Cl+Br2
Cl2+2KI===2KCl+I2 Cl2+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+S↓ Cl2+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+O2 Cl2+H2O2=2H++Cl–+O2
2O2+3Fe Fe3O4 O2+K===KO2
S+H2 H2S 2S+C CS2 S+Zn ZnS
S+Fe FeS (既能由单质制取，又能由离子制取)
S+2Cu Cu2S (只能由单质制取，不能由离子制取)
3S+2Al Al2S3 (只能由单质制取，不能由离子制取)
N2+3H2 2NH3 N2+3Mg Mg3N2 N2+3Ca Ca3N2
N2+3Ba Ba3N2 N2+6Na 2Na3N N2+6K2K3N
P4+6H2 4PH3 P+3Na Na3P 2P+3Zn Zn3P2
2、还原性
S+6HNO3(浓) H2SO4+6NO2↑+2H2O
3S+4HNO3(稀) 3SO2+4NO↑+2H2O
2P+3X2 2PX3（X表示F2，Cl2，Br2）
P4+20HNO3(浓) 4H3PO4+20NO2↑+4H2O
2C+SiO2 Si+2CO(制得粗硅)
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+H2O H++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+6OH– 5Cl–+ClO3–+3H2O)
3S+6NaOH 2Na2S+Na2SO3+3H2O (3S+6OH– 2S2–+SO32–+3H2O)
4P+3KOH(浓)+3H2O==PH3↑+3KH2PO2 (4P+3OH–+3H2O==PH3↑+3H2PO2–)
11P+15CuSO4+24H2O==5Cu3P+6H3PO4+15H2SO4
Flame
U262788925
