论文部分内容阅读
一、问题提出氢氧燃料电池实验为高中阶段非常重要的实验。传统实验以玻璃器皿为载体,实验准备烦琐,药品消耗多,三废不易处理。在实际教学中,多数教师选择视频教学。也有教师用滤纸或试纸对以上实验进行微型化改进~([1-3]),但由于载体单一,实验还可以继续改进,以提升实验效果。二、实验药品及仪器硫酸钠稀溶液、pH试纸、滤纸、标准比色卡、2B铅笔芯数根、灵敏电流计、胶头滴管、1.5 V电池两节、电池盒一个、两端
First, the problem proposed Hydrogen fuel cell experiment for the high school stage is very important experiment. Traditional experiments with glassware as a carrier, experimental preparation cumbersome, drug consumption, waste is not easy to handle. In actual teaching, most teachers choose video teaching. There are also teachers to use the filter paper or test paper to miniaturize the above experiment to improve the (~ [1-3]), but because of a single carrier, the experiment can continue to improve to enhance the experimental results. Second, the experimental drugs and equipment dilute sodium sulfate solution, pH test paper, filter paper, standard colorimetric card, 2B pencil core, sensitive galvanometer, plastic dropper, 1.5 V battery two, a battery box, both ends