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在4支100mL的塑料针筒中,分别充入40mLCl2,再分别快速注入10mLH2O,10mL饱和NaCl溶液、10mL饱和NaHCO3溶液、10mL浓Na2CO3溶液,可以观察到多角度、多层次的实验现象,以此总结出Cl2与H2O反应的实际过程,让优美的实验现象、精巧的实验设计、美妙的思维方式激活学生对化学探究的无限兴趣,唤醒学生对化学真与美的探索。
In 4 100mL plastic syringes were filled with 40mLCl2, and then were quickly injected 10mLH2O, 10mL saturated NaCl solution, 10mL saturated NaHCO3 solution, 10mL concentrated Na2CO3 solution, we can observe the multi-angle, multi-level experimental phenomena, to conclude Cl2 and H2O reaction of the actual process, so that the beautiful experimental phenomena, exquisite experimental design, wonderful ways of thinking to activate the students interest in chemistry to explore and awake students to explore the true and the true chemistry.