化学方程式及离子方程式2

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1、第五部分离子反应（按字母顺序排列）Al2Al+6H+＝2Al3++3H2↑            2Al+2OH-+2H2O＝2+3H2↑                                                                                                                                                              Al3++3HS-+3H2O＝Al(OH)3↓+3H2S↑      2Al3++3S2-+6H2O＝2Al(OH)3↓+3H2S

2、↑      Al2O3+6H+＝2Al3++3H2O        Al(OH)3+3H+＝Al3++2H2OAg                                       Ag++Cl-＝AgCl↓      Ag++Br-＝AgBr↓Ag++I-＝AgI↓            Ag2CO3+2H+＝2Ag++CO2↑+H2O          Ag3PO4+3H+＝3Ag++H3PO4BaBa2++2OH-+CO2＝BaCO3↓+H2O      BaCO3+2H+＝Ca2++CO2↑+H2O                           Br2

3、Br-+Cl2=2Cl-+Br2              4Br-+2Fe2++3Cl2＝2Fe3++2Br2+6Cl-（足量Cl2）2Br-+2Fe2++2Cl2＝2Fe3++Br2+4Cl-（当n(FeBr2)/n(Cl2)=1:1时）　　　　　10Br-+6Fe2++8Cl2＝6Fe3++5Br2+16Cl-（当n(FeBr2)/n(Cl2)=3:4时）C                                                                                            CO2+Ba2++2OH-＝BaC

4、O3↓+H2OCaCa2++2OH-+CO2＝CaCO3↓+H2O          Ca2++2OH-+SO2＝CaSO3↓+H2O        Ca2++2ClO-+SO2+H2O＝CaSO4↓+HClO+H++Cl-（少量SO2）               Ca2++2ClO-+CO2+H2O＝CaCO3↓+2HClOCaCO3+2H+＝Ca2++CO2↑+H2OClCl2+H2O＝Cl-+H++HClO        Cl2+2OH-＝Cl-+ClO-+H2O      Cl2+2OH-＝Cl-+ClO-+H2O      Cl2+2I-＝2Cl-+I2      

5、            Cl2+H2S＝2Cl-+2H++S↓            Cl2+2Fe2+＝2Fe3++2Cl-（向FeBr2溶液中少量Cl2）　　　3Cl2+2Fe2++4Br-＝2Fe3++2Br2+6Cl-（足量Cl2）        2Cl2+2Fe2++2Br-＝2Fe3++Br2+4Cl-（当n(FeBr2)/n(Cl2)=1:1时）　　　　　8Cl2+6Fe2++10Br-＝6Fe3++5Br2+16Cl-（当n(FeBr2)/n(Cl2)=3:4时）          Cl2+2I-＝2Cl-+I2          Cl2+2I-＝I2+2Cl-

6、（向FeI2溶液中通入少量Cl2）3Cl2+2Fe2++4I-＝2Fe3++2I2+6Cl-（足量Cl2）      4Cl2+2Fe2++6I-＝2Fe3++3I2+8Cl-（当n(FeI2)/n(Cl2)=3:4时）　　　　　　2Cl-+4H++MnO2＝Mn2++Cl2↑+2H2O      Cl-+Ag+＝AgCl↓        ClO-+H+＝HClO          ClO-+H2OHClO+OH-CrCuCu+2Fe3+＝2Fe2++Cu2+                                   Cu2++2Na+2H2O＝2Na++Cu(OH)

7、2↓+H2↑                Cu2++H2S＝2H++CuS↓              Cu2++Fe＝Cu+Fe2+          Cu2++2OH-＝Cu(OH)2↓       CuO+2H+＝Cu2++H2O        CxHyOz                                        2CH3COOH+CaCO3＝2CH3COO-+Ca2++CO2↑+H2OFeFe+2H+=Fe2++H2↑          Fe+Cu2+=Fe2