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1装置制作在普通的大试管中,离试管口约三分之一处内,用酒精喷灯烧一小孔,连接一小试管,小试管和大试管夹角约成30度左右,如图1所示。2实验操作先把氯酸钾用药匙小心装入大试管底部,然后再用干净的药匙把二氯化锰装入支试管的底部,用带导管的单孔橡皮塞塞紧试管口,再用试管夹将
A device is made in an ordinary large test tube, about one third from the mouth of the test tube, a small hole is blown with an alcohol torch, a small test tube is connected, and the angle between the small test tube and the large test tube is about 30 degrees, as shown in Fig. 1 As shown. 2 Experimental operation Carefully insert the potassium chlorate spoon into the bottom of the large test tube. Then use a clean spatula to put manganese dichloride into the bottom of the test tube. Use a single-hole rubber stopper with a catheter to tightly seal the test tube and use the test tube. Folder will