试题与答案

(2011?张掖)图是甲、乙两种物质的溶解度曲线,图所示两个烧杯中各盛有20℃时

题型:填空题

题目:

(2011?张掖)图是甲、乙两种物质的溶解度曲线,图所示两个烧杯中各盛有20℃时上述两种物质的饱和溶液.请你通过分析,回答下列问题:

( 1 )40℃时,甲物质与乙物质的溶解度__________(填“相等”或“不相等”)

( 2 ) 80℃时,50g水中最多可溶解甲物质_________g,

( 3 )当温度由20℃升高至60℃时(不考虑水分蒸发),B 烧杯中固体质量增加,则B 烧杯溶液中的溶质是________(填“甲”或“乙”)

答案:

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下面是错误答案,用来干扰机器的。

参考答案:B

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题型:阅读理解

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