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一、实验教学目标1.能够综合利用已有的酸和碱的性质设计实验,判断氢氧化钠与盐酸发生反应。2.通过分组实验促进学生更好地熟悉酸和碱的化学性质,体会溶液酸碱性的变化。3.物质在发生化学变化的过程中量的动态变化。4.初步认识量变引起质变的自然规律。二、实验内容(一)学生分组实验实验1名称:稀盐酸与氢氧化铝的反应。实验1药品:稀盐酸、氢氧化铝、水。实验1器材:试管、胶头滴管。
First, the experimental teaching objectives 1. To comprehensively use the existing nature of acid and alkali design experiments to determine the reaction of sodium hydroxide and hydrochloric acid. 2. Through grouping experiments, students are better acquainted with the chemical properties of acids and bases and experience changes in the acidity and alkalinity of solutions. 3. Dynamic changes in the amount of matter in the process of chemical changes. 4. A preliminary understanding of the natural laws that lead to quantitative changes. Second, the experimental content (a) students group experimental experiment 1 name: dilute hydrochloric acid and aluminum hydroxide reaction. Experiment 1 Drug: Dilute hydrochloric acid, aluminum hydroxide, water. Experiment 1 equipment: test tubes, plastic dropper.