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钠与水反应的实验,是说明金属钠化学性质的重要实验。初中教材对该实验的演示已有详尽说明,但实际操作时却感到不便。我按下图改进的装置实验,取得了较好的教学效果。 实验步骤:
The reaction of sodium with water is an important experiment to explain the chemical properties of sodium metal. The demonstration of junior high school textbooks has been described in detail, but it is inconvenient in practice. I improved the device experiment according to the figure and achieved better teaching results. Experimental steps: