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1、高考化学方程式：非金属单质非金属单质(F2，Cl2,O2,S,N2,P,C,Si，H)1、氧化性：F2+H2=2HF (阴暗处爆炸)F2+Xe(过量)=XeF22F2(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+H2OF2+2NaCl=2NaF+Cl2F2+2NaBr=2NaF+Br2F2+2NaI=2NaF+I27F2(过量)+I2=2IF7F2+Cl2(等体积)=2ClF (ClF属于类卤素：ClF+H2O=HF+HClO
2、 )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 2NaCl3Cl2+2Fe 2FeCl3 Cl2+Cu CuCl2Cl2+2FeCl2=2FeCl3 (在水溶液中：Cl2+2Fe2+=2Fe3+3Cl )Cl2+2NaBr=2NaCl+Br2 Cl2+2Br =2Cl +Br2Cl2+2KI=2KCl+I2 Cl2+2I =2Cl +I23Cl2(过量)+2KI+3H2O=6HCl+KIO33Cl2+I&ndas
3、h;+3H2O=6H+6Cl–+IO3–5Cl2+I2+6H2O=2HIO3+10HCl5Cl2+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+2HClCl2+SO2+2H2O=4H+SO42–+2Cl–Cl2+H2O2=2HCl+O2 Cl2+H2O2=2H+Cl&
4、ndash;+O22O2+3Fe Fe3O4 O2+K=KO2S+H2 H2S 2S+C CS2 S+Zn ZnSS+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 Ca3N2N2+3Ba Ba3N2 N2+6Na 2Na3N N2+6K 2K3NN2+6Rb 2Rb3N N2+2Al 2AlNP4+6H2 4PH3 P+3Na Na3P 2P+3Zn Zn3P2H2+2Li 2LiH2、还原性S+O2 SO2S+H
5、2SO4(浓) 3SO2↑+2H2OS+6HNO3(浓) H2SO4+6NO2↑+2H2OS+4H+6=6NO2↑+2H2O+3S+4HNO3(稀) 3SO2+4NO↑+2H2O3S+4H+4 3SO2+4NO↑+2H2ON2+O2 2NO4P+5O2 P4O10(常写成P2O5)2P+3X2 2PX3(X表示F2，Cl2，Br2)PX3+X2 PX5P4+20HNO3(浓) 4H3PO4+20NO2↑+4H2OC+2F2 CF4C+2Cl2 CCl4C+O2(足量) CO22C+O2(少量) 2COC+CO2 2COC+H2O CO
6、+H2(生成水煤气)2C+SiO2 Si+2CO(制得粗硅)Si(粗)+2Cl2 SiCl4(SiCl4+2H2=Si(纯)+4HCl)Si(粉)+O2 SiO2Si+C SiC(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+H2O H+Cl–+HClO)Cl2+2NaOH=NaCl+NaClO+H2O (Cl2+2OH–=Cl–+ClO–+H2O)Cl2+2Ca(OH)2=CaCl2+Ca(Cl
7、O)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+15H2SO43C+CaO CaC2+CO↑3C+SiO2 SiC+2CO↑第 4 页
