既能与酸,又能与碱反应的物质共有哪些

5个回答

  • 某些金属:Al、Zn

    2Al+3H2SO4=Al2(SO4)3+3H2↑

    2Al+2NaOH+2H2O=2NaAlO2+3H2↑ (与强碱溶液)

    Zn+2HCl=ZnCl2+H2↑

    Zn+2NaOH=Na2ZnO2+H2↑ (与强碱溶液)

    某些非金属:Si、S

    Si+3HCl(干燥)=SiHCl3+H2↑

    Si+2NaOH+H2O=Na2SiO3+2H2↑

    S+6HNO3(浓)=H2SO4+6NO2↑+2H2O

    3S+6KOH=2K2S+K2SO3+3H2O

    两性氧化物:Al2O3、ZnO

    Al2O3+6HCl=2AlCl3+3H2O

    Al2O3+2NaOH=2NaAlO2+H2O

    ZnO+H2SO4=ZnSO4+H2O

    ZnO+2NaOH=Na2ZnO2+H2O

    两性氢氧化物:Al(OH)3、Zn(OH)2

    Al(OH)3+3HCl=AlCl3+3H2O

    Al(OH)3+NaOH=NaAlO2+3H2O

    Zn(OH)2+H2SO4=ZnSO4+2H2O

    Zn(OH)2+2NaOH=Na2ZnO2+2H2O

    弱酸的铵盐:(NH4)2S、(NH4)2CO3、CH3COONH4

    (NH4)2S+2HCl=2NH4Cl+H2S↑

    (NH4)2S+2NaOH=Na2S+2NH3↑+2H2O

    弱酸的酸式盐:NaHCO3、NaHS、K2HPO4

    NaHS+HCl=NaCl+H2S↑

    NaHS+NaOH=Na2S+H2O

    还原性酸:H2S、HI

    H2S+2HNO3(稀)=2S↓+2NO2↑+2H2O (与氧化性酸)

    H2S+2NaOH=Na2S+H2O

    强氧化性酸:浓H2SO4、HNO3

    H2SO4(浓)+2HI=I2+SO2↑+2H2O

    (与还原性酸)

    H2SO4+2NaOH=Na2SO4+2H2O

    个别的酸性氧化物:SiO2

    SiO2+4HF=SiF4↑+2H2O

    SiO2+2NaOH=Na2SiO3+H2O

    10一些盐类物质:Na2CO3和一些重金属强酸盐CuSO4、AgNO3等.

    Na2CO3+2HCl=2NaCl+H2O+CO2↑

    Na2CO3+Ca(OH)2=CaCO3↓+2NaOH

    CuSO4+H2S=CuS↓+H2SO4

    CuSO4+2NaOH=Cu(OH)2↓+Na2SO4