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在高中课本中有很多知识点,讲深了学生理解不了,讲浅了学生又感觉不清楚。这是因高中生理解能力不强,掌握基础知识不深入,高考要求不到位造成的。对于胶体的结构等问题,学生总是感觉半懂不懂的,笔者经过多年的教学工作,对有关问题做如下解释。一、胶体空间结构是怎么样的?有关胶体的结构,通常认为在胶体粒子的中心,是一个由许多分子聚集而成的固体颗粒,通常称它胶核。胶核具有很大的比表面积(比表面积
In high school textbooks have a lot of knowledge points, students can not understand the depth, speak shallow students do not feel clear. This is because high school students do not understand the ability to master the basic knowledge is not in-depth, college entrance examination requirements are not in place. For colloidal structure and other issues, students always feel half understand do not understand, the author after years of teaching, do the following explanation of the problem. First, the colloidal space structure is like? About colloidal structure, usually considered in the colloidal particle center, is a collection of many molecules made of solid particles, usually called rubber core. Gum core has a large specific surface area (specific surface area