F.4 Chem pls help 20點!!!

2014-01-11 4:01 am
1) What is the observation when Magnesium is put into iron(ll) sulphate solution?
Is it hard to see silvery solid formed and magnesium dissolved? Why?

2) What is the observation when magnesium reacts with steam?
Is the white power formed on the metal surface?

回答 (1)

2014-01-11 4:19 am
✔ 最佳答案
不妨自己睇:
https://www.youtube.com/watch?v=cVs5WPpL59Q

汽泡影响了觀察,難睇清楚,但所形成者是細微的鉄粒子,應該感覺上為黑色而非銀灰色。


https://www.youtube.com/watch?v=uYbXZOg0id0

反應很強烈,整條鎂條都反應了,應該不是只在表面。


收錄日期: 2021-04-27 20:33:41
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