幫忙:
1.How many gases do we have? e.g (oxygen....)
2.Who discover the gases ( just the name )
3.What is the uses of gas ? e.g(to clean the water)
4.What is noble gases?
有關gases 的問題 help!!∮
2009-09-06 12:43 am
回答 (2)
2009-09-07 5:19 pm
✔ 最佳答案
1)There are a lot such N2 , O2 , H2 , CO , CO2 ,HCl....................................................................etc . Too much !!!!2)Nitogen is discovered by German chemist (1868-1934) Fritz Haber, you can search the names , you better learn how to ask question & I think it is silly to answer your questions !
3) What gas you want to know , you must first name it before I can answer you !!!
4) This question is OK, someone has answered , I will not repeat here .
2009-09-06 8:27 pm
4. Noble gas
惰性氣體
包括氦(He),氖(Ne),氬(Ar),氪(Kr),氙(Xe),氡(Rn)
它們最外層有8個電子,所以十分穏定,不活潑
惰性氣體
包括氦(He),氖(Ne),氬(Ar),氪(Kr),氙(Xe),氡(Rn)
它們最外層有8個電子,所以十分穏定,不活潑
參考: 知識+
收錄日期: 2021-04-13 16:49:55
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