题目

 (1)相同温度下，将足量氯化银固体分别放入相同体积的①蒸馏水、          ＝                        ＝ 0.06(kPa)－1   p2(NO2)    [100kPa×（1－66.7%）] 2  ②0.1 mol·L－1盐酸、③0.1 mol·L－1氯化镁溶液、④0.1 mol·L－1 硝酸银溶液中， 其中Ag＋浓度最小的是____________。（填序号） (2)电解氯化钠可以得到多种化工原料。用于电解的食盐水需先除去其中的Ca2＋、Mg2＋、SO等杂质。某次除杂操作时，往粗盐水中先加入过量的BaCl2溶液，至沉淀根据下面的对话内容，从方框内的选项中选出最佳选项，使对话完整通顺，并把选项转涂到答题卡上相应位置。选项中有一项为多余选项。A: What are you going to do on holiday, Tony?B: 1.A. You'll love it! 2. We had a great time.B: How long did it take to get there?A:3.B: And who was with you?A: My aunt and uncle met me at the airport.B: And where did you go?A: Well, first, we went to Disneyland 4.B: 5.A : We spent two days there. And then we went shopping.A. We're going to Sydney.B. How long did you spend there?C. It took about 12 hours. D. I went there two months ago. E. I think it’s a great place to have fun. F. Then, we’ll have dinner.