How to collect a kind of gas from the air???
回答 (2)
2007-09-06 6:49 am
✔ 最佳答案
you mean a specific gas?you can get oxygen and nitrogen by fractional distillation of liquid air
參考: me*
2007-09-06 2:39 am
use a plastic bag
收錄日期: 2021-04-13 13:19:40
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https://hk.answers.yahoo.com/question/index?qid=20070905000051KK02861