题目

已知在25℃的水溶液中，AgX、AgY、AgZ均难溶于水，且Ksp(AgX)== 1.8×10-10，Ksp(AgY)== 1.0×10-12，Ksp(AgZ)== 8.7×10-17；（1）根据以上信息，判断AgX、AgY、AgZ三者的溶解度（以被溶解的溶质的物质的量／1L溶液表示）S(AgX)、S(AgY)、S(AgZ)的大小顺序为：           _______________（2）若向AgY的饱和溶液中加入少量的AgX固体，则c(Y－)                   （填“增大”、“减小”或“不变”）。（3）由上述Ksp判断，在上述（2）的体系中，能否实现AgY向AgZ的转Few people I know seem to have much desire or time to cook. Making Chinese【1】(dish) is seen as especially troublesome. Many westerners【2】come to China cook much less than in their own countries once they realize how cheap【3】 can be to eat out. I still remember【4】(visit) a friend who’d lived here for five years and I【5】 (shock) when I learnt she hadn’t cooked once in all that time.While regularly eating out seems to【6】(become) common for many young people in recent years, it’s not without a cost. The obvious one is money; eating out once or twice a week may be 【7】 (afford) but doing this most days adds up. There could be an even【8】(high) cost on your health. Researchers have found that there is a direct link between the increase in food eaten outside the home and the rise in【9】(weigh) problems.If you are not going to suffer this problem, then I suggest that the next time you go to your mum’s home【10】dinner, get a few cooking tips from her. Cooking food can be fun. You might also begin to notice the effects not only on your health but in your pocket.