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溶液与科研、生产和生活实际有着密切的联系,以溶液为载体的化学计算,也成为中考化学的热点考题之一。在素质教育的背景下,对单纯的数字计算能力已经淡化,更注重考查学生审题思路是否清晰、缜密,解题过程是否细心、耐心,同时也考查了学生应试的心理素质。中考中此类考题往往具有隐蔽性强、考查面广、考查灵活等特点,学生在
Solution and scientific research, production and life are closely linked to the actual practice, the solution as the carrier of chemical calculation, has also become one of the hot topics in the entrance exam chemistry. In the context of quality education, the ability of simple numerical calculation has been diluted, paying more attention to examining whether students 'thought-provoking thought is clear and meticulous, whether the process of solving problems is meticulous and patient, and also examines the students' mental qualities under examination. In the senior high school entrance examination in such exams often have a strong concealment, a wide range of test, test flexible features such as students