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结晶水合物的学习始于初中,散见于初、高中有关内容。在平时的练习考试中,常常出现与此有关的问题,由于教材缺乏系统介绍,导致教和学都有一定困难。现就这个问题进行释疑、归类,供同行及学生参考。 一、关于结晶水合物的概念、性质 1.结晶水合物是纯净物还是混和物? 结晶水合物是指含有结晶水的物质,结晶水合物不是无水物与水的简单混和,而是以化学键相结合,有的以氢键结合,有的以配位键结合等,其组成完全符合定组成定律,具有固
The learning of crystalline hydrate started in junior high school and was scattered in the early and high schools. In the usual practice exams, there are often problems related to this. Due to the lack of systematic introduction of teaching materials, teaching and learning are difficult. This question is now dispelled and classified for reference by peers and students. 1. Concepts and Properties of Crystalline Hydrate 1. Crystalline hydrate is a pure substance or a mixture. Crystalline hydrate is a substance containing water of crystallization. Crystalline hydrate is not a simple mixture of anhydrate and water, but a chemical bond. In combination, some are combined with hydrogen bonds, others are combined with coordination bonds, etc. Their composition fully complies with the established compositional law, with solid