A.pH>7,且c(OH-)>c(Na+)>c(H+)>c(CH3COO-) |
B.pH>7,且c(Na+)+c(H+)=c(CH3COO-)+c(OH-) |
C.pH<7,且c(CH3COO-)>c(H+)>c(Na+)>c(OH-) |
D.pH=7,且c(CH3COO-)=c(Na+)>c(H+)=c(OH-) |
A.pH>7时,c(C6H5O-)>c(K+)>c(H+)>c(OH-) |
B.pH<7时,c(K+)>c(C6H5O-)>c(H+)>c(OH-) |
C.V[C6H5OH(aq)]=10ml时,c(K+)=c(C6H5O-)>c(OH-)=c(H+) |
D.V[C6H5OH(aq)]=20ml时,c(C6H5O-)+c(C6H5OH)=2c(K+) |
A.c(R2-)+ c(OH-)=c(Na+)+c(H+) |
B.c(R2-)>c(Na+)>c(H+)=c(OH-) |
C.2c(R2-)+ c(HR-)=c(Na+) |
D.混合后溶液的体积为2aL |
A.溶液与溶液: |
B.醋酸与溶液: |
C.溶液与溶液: |
D.溶液与溶液: |
A.AlCl3 | B.KHCO3 | C.Fe2(SO4)3 | D.NaClO |
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