—Tom is your good friend. Can he play chess? —__________. He doesn’t like it. A. Sorry, I don’t know. B. Yes, he can C. No, he can’t D. Yes, he does. 答案:C已知在Ca3(PO4)2的饱和溶液中存在平衡:Ca3(PO4)2(s)=3Ca2+(aq)+2PO43﹣(aq)①溶度积Ksp=;②若一定温度下,饱和溶液中c(Ca2+)=2.0×10﹣6 molL﹣1 , c(PO43﹣)=1.58×10﹣6 molL﹣1 , 则Ksp= .