A.[Na+]+[H+]=[OH-]+[CH3COO-] |
B.[Na+]>[CH3COO-]>[H+]>[OH-] |
C.[OH-]=[H+]+[CH3COOH] |
D.[CH3COOH]+[CH3COO-]=[Na+] |
A.Na2CO3溶液中:c(Na+)>c(CO32-)>c(OH-)>c(HCO3-)>c(H+) |
B.升高温度,溶液的PH值减小 |
C.稀释溶液,溶液中c(H+)和c(OH-)都减少 |
D.加入NaOH固体,溶液pH减小 |
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