常温下，Ksp(CaSO4)=9×l0-6，常温下CaSO4在水中的沉淀溶解平衡曲线如图。下列判断错误的是

题干

常温下，K_sp(CaSO₄)=9×l0^-6，常温下CaSO₄在水中的沉淀溶解平衡曲线如图。下列判断错误的是

A：a、c两点均可以表示常温下CaSO₄溶于水所形成的饱和溶液

B：a点对应的Ksp不等于c点对应的K_sp

C：b点将有沉淀生成，平衡后溶液中c(SO₄^2-)一定等于3×10^-3mol/L

D：向d点溶液中加入适量CaCl₂固体可以变到c点

上一题下一题 0.0难度选择题更新时间:2019-12-16 01:05:03

B

B

Happy Middle School

We're a bilingual(双语的) school for children of 6～15.We want a cook，a library assistant, a sports coach and a language teacher.

Jobs	Ages	Languages	Skills(技能)	Others
cook	25～40	Chinese	can cook Chinese and Western food	healthy
library assistant	20～35	Chinese， English	can read different kinds of books	careful
sports coach	20～40	Chinese, English	major in(主修) P．E.	healthy and strong
language teacher	—	Chinese, English	major in English	—