F.4 chemistry 問題.

Describe simple tests to show that :
a blue soild is a compound of copper.

要點答?
請用英文作答.
如果可以,請加埋中文解釋.
THANK.

grind the solid into powder, dissolve it into distilled water see if it will be blue in color, if so, that means it contained Cu2+ ions and so it should be a copper compound, if not it may not be a copper compound. To further verify that, conduct a electrolysis on the solution, if copper can be found in the cathode, then the solid is a copper compound.
磨碎固體成粉末，溶解于蒸餾水中，如果是藍色，説明有Cu2+離子，那應該是銅合成物，否則不是。再進一步核實的話，對溶液作一次電解，如果負極有銅，那應該是銅合成物。

[[i] 本帖最後由 magiyafeimo 於 2008-9-13 00:50 編輯 [/i]]

heat the solid in air with a Bunsen burner, if it is a copper compound, a bluish-green should be seen

你呢個好d

我已經解決了.THX.

基本上所有Metal Cation用係用Flame test.
係d Anion先要諗點test咋.
不過你個老師應該會有Data book比你跟住做, 所以其實都係腦殘Lab