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一、考情报告1.本部分内容主要涉及的高考考点有:(1)物质的分类及其应用;(2)分散系及胶体的性质;(3)阿伏加德罗常数及阿伏加德罗定律及其推论;(4)有关物质的量和物质的量浓度的计算。2.常考题型为选择题。二、典型例题及知识归纳考点1:物质的分类方法及其应用。例1化学与生产、生活密切相关。下列叙述正确的是()。A.煤的干馏和石油的分馏均属化学变化B.BaSO_4在医学上用作钡餐,Ba~(2+)对人体无毒C.~(14)C可用于文物年代的鉴定,~(14)C~(12)与C互为同
First, the test report 1. This section mainly involved in college entrance examination sites are: (1) the classification of substances and their applications; (2) the nature of dispersed systems and colloids; (3) Avogadro’s constant and avoca DeLiu law and its corollary; (4) The calculation of the amount of substance and the concentration of substance. 2. often test questions for the multiple choice questions. Second, typical examples and knowledge induction test sites 1: Classification of substances and its application. Example 1 chemistry and production, life is closely related. The following is correct (). A. Coal pyrolysis and oil fractionation are chemical changes B. BaSO 4 is used as a barium meal in medicine, Ba 2+ is non-toxic to humans C. ~ (14) C can be used in the identification of artifacts, ~ 14 ) C ~ (12) and C are mutually the same