why硫化銅等可加熱變金屬,但硫化鉛要先變做氧化鉛才加工?
還有why有些金屬有時要加碳才能提取??
唔該啦!!!!!!!!!!!!
唔該啦!!!!!!!!!!!!!!
收錄日期: 2021-04-23 16:09:05
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20061127000051KK04502