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氯酸钾来制氧气,二气化锰催化剂,试管管口略下斜,导气管伸一厘米,铁夹夹在中上部。混合药品要铺开。排水法来收氧气。先移导管后熄试制取氧气实验顺口溜@邹永忠
Potassium chlorate is used to make oxygen, and manganese dioxide is used as the second catalyst. The nozzle of the test tube is slightly slanted. The air tube is extended by one centimeter and the iron clamp is clamped in the upper part. Mixed drugs should be spread out. Drainage method to receive oxygen. After exchanging the catheter and exchanging it to prepare the oxygen experiment, Jingkouzhong