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1、最全的2018高考化学氢化物方程式总结氢化物是氢与其他元素形成的二元化合物，下面为各位同学总结了氢化物方程式总结，希望对各位同学有所帮助。1、还原性:4HCl(浓)+MnO2=MnCl2+Cl2+2H2O4H+2Cl+MnO2=Mn2+Cl2+2H2O4HCl(浓)+PbO2=PbCl2+Cl2+2H2O4H+2Cl+PbO2=Pb2+Cl2+2H2O4HCl(g)+O2=2Cl2+2H2O16HCl+2KMnO4=2KCl+2MnCl2+5Cl2+8H2O16=H+10Cl-+2MnO4=2Mn2+5Cl2+8H2O6HCl+KClO3=KCl+3Cl2+3H2O6H+5Cl+ClO3=3C
2、l2+3H2O14HCl+K2Cr2O7=2KCl+2CrCl3+3Cl2+7H2O14H+6Cl+Cr2O72=2Cr3+5Cl2+7H2O2H2O+2F2=4HF+O22HCl+F2=2HF+Cl2=(F2气与HCl、HBr、HI、H2S、NH3气体不能共存)2HBr+Cl2=2HCl+Br2=(Cl2气与HBr、HI、H2S、NH3气体不能共存)2H2S+3O2(足量)=2SO2+2H2O=2H2S+O2(少量)=2S+2H2O2H2S+SO2=3S+2H2O=H2S+H2SO4(浓)=S+SO2+2H2O3H2S+2HNO3(稀)=3S+2NO+4H2O3H2S+2H+2NO3=3S+
3、2NO+4H2O5H2S+2KMnO4+3H2SO4=2MnSO4+K2SO4+5S+8H2O5H2S+2MnO4+6H+=2Mn2+5S+8H2O3H2S+K2Cr2O7+4H2SO4=Cr2(SO4)3+K2SO4+3S+7H2O3H2S+Cr2O72+8H+=2Cr3+3S+7H2OH2S+4Na2O2+2H2O=Na2SO4+6NaOHH2S+4Na2O2+2H2O=8Na+=+2NH3+3CuO=3Cu+N2+3H2O2NH3+3Cl2=N2+6HCl=8NH3+3Cl2=N2+6NH4ClNH3+NaNO2+HCl=NaCl+N2+2H2ONH3+NO2+H+=N2+2H2O4NH
4、3+3O2(纯氧)=2N2+6H2O=4NH3+5O2=4NO+6H2O4NH3+6NO=5N2+6H2O=(用氨清除NO)NaH+H2O=NaOH+H2=(生氢剂)NaH+H2O=Na+OH+H24NaH+TiCl4=Ti+4NaCl+2H2=CaH2+2H2O=Ca(OH)2+2H22、酸性:4HF+SiO2=SiF4+2H2O(可测定矿样或钢样中SiO2的含量，玻璃雕刻)4HF+Si=SiF4+2H22HF+CaCl2=CaF2+2HCl=H2S+Fe=FeS+H2H2S+CuCl2=CuS+2HCl=(弱酸制强酸的典型反应)H2S+Cu2+=CuS+2H+H2S+2AgNO3=Ag2S
5、+2HNO3H2S+2Ag+=Ag2S+2H+H2S+HgCl2=HgS+2HClH2S+Hg2+=HgS+2H+H2S+Pb(NO3)2=PbS+2HNO3=(铅试纸检验空气中H2S)H2S+Pb2+=PbS+2H+H2S+2Ag=Ag2S+H2(银器在空气中变黑的原因)2NH3(液)+2Na=2NaNH2+H2=(NaNH2+H2O=NaOH+NH3)3、NH3的碱性：NH3+HX=NH4X=(X：F、Cl、Br、I、S)NH3+HNO3=NH4NO3=NH3+H+=NH4+2NH3+H2SO4=(NH4)2SO4=NH3+H+=NH4+NH3+NaCl+H2O+CO2=NaHCO3+NH4Cl(侯德榜制碱：用于工业制备小苏打，苏打)NH3+H2S=NH4HS=NH3+H2S=NH4+HS-4、不稳定性：2HF=H2+F2=2HCl=H2+Cl2=2H2O=2H2+O22H2O2=2H2O+O2=H2S=H2+S=2NH3=N2+3H22HI=H2+I2