搜索
初中化学方程式汇总一、物质与氧气的反应3Fe+2O2点燃Fe3O42Mg+O2点燃2MgO2Cu+O22CuO△4Al+3O2=2Al2O34Al+3O22Al2O3点燃一、物质与氧气的反应2H2+O2点燃2H2OC+O2点燃CO24P+5O2点燃2P2O52C+O2点燃2COS+O2点燃SO2一、物质与氧气的反应2CO+O22CO2点燃CH4+2O2CO2+2H2O点燃C2H5OH+3O22CO2+3H2O点燃二、分解反应2H2O2H2↑+O2↑通电Cu2(OH)2CO32CuO+H2O+CO2↑△2KMnO4△K2MnO4+MnO2+O2↑2KClO3MnO2△2KCl+3O2↑H2CO3=CO2↑+H2OCaCO3CO2↑+CaO高温2H2O22H2O+O2↑三、几个还原反应H2+CuOCu+H2O△3C+2Fe2O34Fe+3CO2↑高温C+2CuO2Cu+CO2↑高温2C+Fe3O43Fe+2CO2↑高温CO+CuOCu+CO2△3CO+Fe2O32Fe+3CO2高温4CO+Fe3O43Fe+4CO2高温四、单质、氧化物、酸、碱、盐的相互反应Zn+H2SO4=ZnSO4+H2↑Fe+H2SO4=FeSO4+H2↑Mg+H2SO4=MgSO4+H2↑2Al+3H2SO4=Al2(SO4)3+3H2↑Zn+2HCl=ZnCl2+H2↑Fe+2HCl=FeCl2+H2↑Mg+2HCl=MgCl2+H2↑2Al+6HCl=2AlCl3+3H2↑Fe+CuSO4=FeSO4+CuZn+CuSO4=ZnSO4+CuCu+2AgNO3=Cu(NO3)2+2AgCuO+H2SO4=CuSO4+H2OFe2O3+6HCl=2FeCl3+3H2OFe2O3+3H2SO4=Fe2(SO4)3+3H2OCuO+2HCl=CuCl2+H2O2NaOH+CO2=Na2CO3+H2O2NaOH+SO2=Na2SO3+H2O2NaOH+SO3=Na2SO4+H2OCa(OH)2+CO2=CaCO3↓+H2OCa(OH)2+SO2=CaSO3↓+H2OHCl+NaOH=NaCl+H2OHCl+KOH=KCl+H2O2HCl+Cu(OH)2=CuCl2+2H2O2HCl+Ca(OH)2=CaCl2+2H2O3HCl+Fe(OH)3=FeCl3+3H2O3HCl+Al(OH)3=AlCl3+3H2OH2SO4+2NaOH=Na2SO4+2H2OH2SO4+2KOH=K2SO4+2H2OH2SO4+Cu(OH)2=CuSO4+2H2O3H2SO4+2Fe(OH)3=Fe2(SO4)3+6H2OHNO3+NaOH=NaNO3+H2O2HCl+CaCO3=CaCl2+H2O+CO2↑2HCl+Na2CO3=2NaCl+H2O+CO2↑2HCl+MgCO3=MgCl2+H2O+CO2↑HCl+AgNO3=AgCl↓+HNO3H2SO4+Na2CO3=Na2SO4+H2O+CO2↑H2SO4+BaCl2=BaSO4↓+2HCl2NaOH+CuSO4=Cu(OH)2↓+Na2SO43NaOH+FeCl3=Fe(OH)3↓+3NaCl2NaOH+MgCl2=Mg(OH)2↓+2NaCl2NaOH+CuCl2=Cu(OH)2↓+2NaClCa(OH)2+Na2CO3=CaCO3↓+2NaOHNaCl+AgNO3=AgCl↓+NaNO3Na2SO4+BaCl2=BaSO4↓+2NaClCO2+H2O=H2CO3CaO+H2O=Ca(OH)2Na2O+H2O=2NaOHSO3+H2O=H2SO4