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一、实验用品试管两支(编号A、B)、红墨水、量筒、活性炭、棉线团2个。二、实验操作1.取少量的活性炭于A试管中。2.用量筒取20 mL(两次)的红墨水分别倒入A、B试管中,并振荡A试管。3.将棉线团(2个)分别塞入A、B试管底部。
First, the experimental supplies two test tubes (No. A, B), red ink, measuring tube, activated carbon, cotton thread 2. Second, the experimental operation 1. Take a small amount of activated carbon in A test tube. 2. Dosage tube Take 20 mL (twice) of red ink were poured into A, B test tube, and shaken A test tube. 3. The cotton thread (2) into the A, B test tube bottom.