A.KCl | B.Mg(OH)2 | C.Na2CO3 | D.MgSO4 |
A.HCOOH+H2OHCOO-+H3O+ |
B.CO2+H2OHC+H+ |
C.C+H2OHC+OH- |
D.HS-+H2OS2-+H3O+ |
A.酸的强弱:HCN>HClO |
B.pH:HClO>HCN |
C.与NaOH恰好完全反应时,消耗NaOH的物质的量:HClO>HCN |
D.酸根离子浓度:c(CN-)<c(ClO-) |
A.稀释溶液,水解平衡常数增大 |
B.通入CO2,平衡朝正反应方向移动 |
C.升高温度,减小 |
D.加入NaOH固体,溶液pH减小 |
A.NH2D·H2O和D3O+ | B.NH3·D2O和HD2O+ |
C.NH3·HDO和D3O+ | D.NH2D·HDO和H2DO+ |
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