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1.实验装置如图A所示。 2.灭火器的制作方法: ①按大饮料瓶口的内径,选一只20mm×230mm的大试管,接近试管口的部位割出一孔。(目的是防止反应时大试管口与胶塞接触,堵塞CO_2气体
1. The experimental device is shown in Figure A. 2. Preparation method of fire extinguisher: 1 According to the inner diameter of the large beverage bottle mouth, select a large 20mm x 230mm test tube, cut a hole close to the test tube mouth. (The purpose is to prevent the large test tube mouth from contacting with the rubber plug during the reaction and to block the CO 2 gas.