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从近几年高考命题来看,有关非金属元素及其化合物的知识。一是结合离子共存、离子方程式、物质鉴别、气体的制取和性质验证、推断和计算等进行考查。二是以新的情境考查有关非金属及其化合物性质的迁移应用,主要体现在氯气的制备与性质探究等,硝酸、浓硫酸和氨气的性质探究,硅的工业制备与其化合物性质等。一、结合基本理论,考查非金属及其化合物的性质化学基本理论包括元素周期律理论、物质结构理论、氧化还原反应理论、电解质理论等,这部分内容通常结合非金属元素及其化
In recent years, college entrance examination proposition, the knowledge of non-metallic elements and their compounds. First, combined with ion coexistence, ion equation, material identification, gas preparation and characterization, inference and calculation to examine. The second is to examine the migration of nonmetal and its compounds based on the new situation, mainly including the preparation and properties of chlorine gas, the research on the properties of nitric acid, concentrated sulfuric acid and ammonia, the industrial preparation of silicon and the properties of its compounds. First, combined with the basic theory to examine the nature of non-metallic compounds and their chemical basic theory including the periodic law of elements, material structure theory, redox reaction theory, electrolyte theory, which part is usually combined with non-metallic elements and their