A.CH3COOH | B.Cl2 | C.NH4Cl | D.SO2 |
A.2H2O H3O++OH- | B.H2S H+ + HS- |
C.NaHS Na++HS- | D.NaHCO3 = Na+ + HCO3- |
A.NH3 | B.(NH4)2SO4 | C.Cl2 | D.CH3COOH |
A.铜丝 | B.酒精 | C.食盐晶体 | D.二氧化碳 |
A.H2CO3H++HCO3- HCO3-H++CO32- |
B.NaHS = Na++H++S2- |
C.H2SO4 = 2H++SO42- |
D.CH3COOH H+ + CH3COO― |
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