01 钠及其化合物转化关系
(1)4Na+O2 2Na2O
(2)2Na+O2
(3)Na2O+H2O 2NaOH
(4)Na2O+CO2 Na2CO3
(5)2Na+2H2O 2NaOH+H2↑
(6)2Na2O2+2H2O 4NaOH+O2↑
(7)2Na2O2+2CO2 2Na2CO3+O2
(8)2NaOH+CO2 Na2CO3+H2O
(9)Na2CO3+Ca(OH)2 +2NaOH
(10)CO32-+H+ HCO3-
CO32-+CO2+H2O HCO3-
(11)2NaHCO3 Na2CO3+H2O+CO2↑
NaHCO3+NaOH Na2CO3+H2O
(12)NaHCO3(少量)+Ca(OH)2 +2NaOH+H2O
2NaHCO3+2Ca(OH)2(少量) Na2CO3+2H2O
02 铝及其化合物转化关系
(1)2Al+6H+====2Al3++ 3H2↑
(2)4Al+3O2
(3)2Al+2H2O+2OH-====2AlO2-+3H2↑
(4)2Al2O3
(5)Al2O3+6H+====2Al3++3H2O
(6)Al2O3+2OH====2AlO2-+H2O
(7)2Al(OH)3
(8)Al(OH)3+3H+====Al3++3H2O
(9)Al(OH)3+OH-====AlO2-+2H2O
(10)Al3++3NH3·H2O====Al(OH)3↓+3NH4
Al3++3OH-====Al(OH)3
(11)Al3++4OH-====AlO2-+2H2O
(12)AlO2-+CO2+2H2OAl(OH)3↓+HCO3-
2AlO2-+CO2+3H2OAl(OH)3↓+CO32-
(13)AlO2-+4H+====Al3++2H2O
03 铁及其化合物转化关系
(1)
(1)3Fe+2O2
3Fe+4H2O(g)
(2)Fe + S
Fe+2H+===Fe2++H2↑
3Fe+8HNO3(稀)===3Fe(NO3)2+2NO↑+4H2O
(3)2Fe + 3Cl22FeCl3
Fe+4HNO3(稀)===Fe(NO3)3+NO↑+2H2O
(4)Fe2++Zn===Fe+Zn2+
(5)Fe2++2OH-===Fe(OH)2
(6)2Fe2++Cl2===2Fe3++2Cl-
(7)Fe2O3+3H2
(8)2Fe3++Cu===2Fe2++Cu2+
2Fe3++Fe===3Fe2+
(9)Fe3++3OH-===Fe(OH)3
(10)Fe(OH)2+2H+===Fe2++2H2O
(11)4Fe(OH)2+O2+2H2O
(12)Fe(OH)2+3H+===Fe3++3H2O
(13)2Fe(OH)3
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