现行高中课本没有编入Ｎａ２Ｏ２和ＣＯ２反应的演示实验，为了表示这一重要反应原理，有必要设计这一实验。本人经过反复试验与改进肥该实验设计如下。 装置如图１所示，用２０ｍｍ×２００ｍｍ玻璃管或穿底试管，在离底部２.５ｃｍ处放　一片带孔塑料片，利用它与管壁之间的 The current high school textbooks do not include demonstration experiments for the reaction of Na2O2 and CO2. In order to express this important reaction principle, it is necessary to design this experiment. I have experimented and improved the experiment. The experimental design is as follows. The device is shown in Fig. 1. Using a 20mm x 200mm glass tube or a test tube, a piece of plastic with holes is placed 2.5cm from the bottom, using it between the wall of the tube.