有關displacement reaction

👨🏻‍🏫 學術台化學

[匿名]

2007-11-05 2:10 am

what will happen when calcium place in zinc nitrate solution?

更新1:

actually I know displacement will take place, what I do concern is calcium also will react with water contained in the solution, so which reaction is more preferable? or both occur at the same time?

回答 (1)

Gabriella Montez

2007-11-05 3:36 am

✔ 最佳答案

The ionic equation for the reaction:
Ca + Zn2+ --- > Ca2+ + Zn
Displacement reaction will occur since calcium is more reactive than zinc.
Here are the observations:
The calcium metal will decrease in size ( since it loses electrons and becomes calcium ions ).
A layer of grey metal will coat onto the metal surface ( since zinc ions gain electrons and become zinc metal).

2007-11-06 22:35:50 補充：
You're right, both reactions occur at the same time.

參考: My Chem Knowledge

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