题目内容

You can infer from this passage that

A. many Italian women spoke in public
B. Italian women generally did not speak in public
C. most Italian men liked to speak in public
D. Italian women liked to listen to public speaking

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25℃时下列难溶电解质的溶度积:Ks(Cr(OH)3)=6.3×10-31, Ks(AgBr)= 5.35×10-13, Ks(Ca3(PO4)2)= 2.07×10-29, Ks(Ag2S)= 6.3×10-50,溶解度(mol/L)最大的是:

A. Cr(OH)3
B. AgBr
Ca3(PO4)2
D. Ag2S

在已经产生了AgCl沉淀的溶液中,能使沉淀溶解的方法是:

A. 加入盐酸
B. 加入AgNO3
C. 加入氨水
D. 加入NaCl

难溶强电解质BaCO3在下列溶液中溶解最多的是:

A. BaCl2
B. Na2CO3
C. 纯水
D. H2CO3

由于KS Ө (AgCl)≈10-10, KS Ө (Ag2CrO4)≈10-12,因此在水中的溶解度是 AgCl> Ag2CrO4。

A. 对
B. 错