在讲初中化学第五章第一节“水的組成”时,没有霍夫曼电解器,因而不能进行实驗。但要制造和这相似的仪器却又需要一些很貴重的材料,如铂絲等。后来就利用手电筒电池的碳棒做电板试制成功,效果良好。仪器的安装方法是:用一个大烧杯,杆內装五分之四的清水,然后滴入3—4毫 When we talk about the chemical composition of water in Chapter 5, Chapter 5 of junior high school, there is no Huffman electrolyzer, so we can not conduct experiments. However, to create such a similar instrument but also need some very valuable materials, such as platinum wire and so on. Later on the use of flashlight battery carbon rod to do the trial plate, the effect is good. The installation of the instrument is: with a large beaker, rod containing four fifths of water, and then drip 3-4 milliseconds