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溶解度是初中化学中的一个重要概念,溶解度曲线综合题是近年中考的热点题型,经常以选择题和填空题的形式出现,考查的内容集中在信息的整合与运用上,这类题目涵盖面广,综合性强,较好地考查学生的观察能力、获取信息的能力及知识应用能力,特别是,对查找某种物质在不同温度下的溶解度,比较不同物质在相同温度下的溶解度的大小,判断温度对物质溶解度的影响,判断结晶方法及析出晶体的多少,溶质质量分数及其有关计算,
Solubility is an important concept in junior middle school chemistry. Solubility curve synthesis is a hot topic type in recent years. It frequently appears in the form of multiple choice and blank-fill questions. The content of examination focuses on the integration and application of information. Wide and comprehensive, a good examination of students' ability to observe, access to information and knowledge of the ability to apply, in particular, to find a substance at different temperatures solubility, compared to different substances at the same temperature, the size of the solubility , To determine the effect of temperature on the solubility of substances to determine the crystallization method and the amount of crystals precipitated, solute mass fraction and its related calculations,