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在中学化学中水是无机物、中性的溶剂,往往用于配制溶液或做反应物。除了无机物中一些物质难溶于水外,大多数有机物都难溶于水,但是,水却在有机化学中起着非常重要的作用。以下是我在化学教学中的一些反思。一、用水可以区别一些有机物有机物中有的物质的密度比水小,且不溶于水;如大多数烃而有的物质密度比水重,且不溶于水,如部分烃的衍生物,这些物
In high school chemistry, water is an inorganic, neutral solvent that is often used to formulate solutions or reactants. In addition to some of the inorganic material is difficult to dissolve in water, most of the organic matter are difficult to dissolve in water, however, water is in organic chemistry plays a very important role. The following is my reflection in chemistry teaching. First, the water can be used to distinguish some organic matter in the density of some substances smaller than water, and insoluble in water; as most of the hydrocarbons and some substances than water density, and insoluble in water, such as some hydrocarbon derivatives, these substances