A.NaHCO3与Ca (OH)2 | B.Ba(OH)2与H2SO4 |
C.HCl与Na2CO3 | D.Ca(HCO3)2与NaOH |
A.在KHSO4溶液中加入氢氧化钡溶液至SO42-沉淀完全: Ba2++OH-+H++SO42-=BaSO4↓+H2O |
B.Na2O2与H2O反应生成O2:Na2O2 + H2O= 2Na+ + 2OH- + O2↑ |
C.将氯气溶于水制备次氯酸:Cl2 + H2O= 2H+ + Cl- + ClO- |
D.用惰性电极电解饱和氯化镁溶液:2Cl-+ 2H2O ![]() |
A.将Fe(OH)3溶于HI溶液中:Fe(OH)3+3H+=Fe3++3H2O |
B.NaHCO3溶液水解:HCO3-+H2O ![]() |
C.用浓硫酸酸化的KMnO4溶液与H2O2反应,证明H2O2具有还原性: 2MnO ![]() |
D.向Ba(HCO3)2溶液中加入少量的NaOH溶液 Ba2++2HCO3-+2OH-=BaCO3↓+CO32-+2H2O |
A.CH3COO— + H2O![]() | B.NH4+ + H2O![]() |
C.S2- + 2H2O![]() | D.HCO3- + H2O ![]() |
A.2AlCl3(熔融) ![]() |
B.电解CuCl2溶液:2Cu2+ + 2H2O![]() |
C.硫酸氢铵溶液与足量烧碱稀溶液共热:NH4+ + H++ 2OH- ![]() |
D.氯化铁溶液中通入足量H2S气体:2Fe3+ + 3H2S = 2FeS↓ + S↓ + 6H+ |
© 2017-2019 超级试练试题库,All Rights Reserved.