A.94.1% | B.92.9% | C.86.3% | D.83.2% |
3.18g |
106g/mol |
111.44g |
120g |
A.铝粉投入到足量NaOH溶液中:2Al+2OH-═2AlO2-+H2↑ |
B.AlCl3溶液中加入足量氨水:Al3++3OH-═Al(OH)3↓ |
C.碳酸氢钠溶液中加入足量澄清石灰水:HCO3-+OH-+Ca2+=CaCO3↓+H2O |
D.Cl2与水反应:Cl2+H2O=2H++Cl-+ClO- |
A.NaHSO4═Na++H++SO42- | B.NaHCO3═Na++HCO3- |
C.CH3COOH═H++CH3COO- | D.Ba(OH)2═Ba2++2OH- |
A.铁粉投入到盐酸中:2Fe+6H+=2Fe3++3H2↑ |
B.Al(OH)3溶于NaOH溶液中:Al(OH)3+OH-=AlO2-+2H2O |
C.漂白粉溶液中通入过量的CO2:Ca2++2ClO-+CO2+H2O=CaCO3↓+2HClO |
D.硫酸与Ba(OH)2溶液反应:H++OH-=H2O |
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