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一、设计思想沉淀的生成和溶解是在生产生活和科学研究中十分重要的现象,沉淀溶解平衡原理在生产生活中的应用也十分广泛。本节课以生产生活中的案例形式,从不同角度,运用平衡移动的原理以及溶液中离子浓度与溶度积的关系,对沉淀的生成、沉淀的溶解和转化等问题作进一步的讨论。各案例又以问题组合的形式,用平衡理论解释、解决生产生活中的实际问题,深化沉淀溶解平衡原理的认识,建立对化学反应本质的认识。
First, the design ideas Precipitation generation and dissolution is a very important phenomenon in production and scientific research, precipitation and dissolution of the balance principle in the production and application of life is also very extensive. In this section, we will take the case of production and life as a case to discuss further the formation of precipitation, the dissolution and transformation of precipitation, and other issues from different angles by using the principle of equilibrium mobility and the relationship between the ion concentration and the solubility product in solution. In each case, the case was solved by the theory of equilibrium, explaining the practical problems in production and life, deepening the understanding of the principle of sedimentation and dissolution equilibrium, and establishing the understanding of the nature of chemical reactions.