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Question
A student took a small amount of copper oxide in a conical flask and added dilute hydrochloric acid to it with constant stirring. He observed a change in colour of the solution.
- Write the name of the compound formed and its colour.
- Write a balanced chemical equation for the reaction involved.
Solution
- The substance is known as copper (II) chloride (CuCl2), and it has a bluish hue.
- \[\ce{CuO(s) + 2HCl (aq) ->CuCl2 (aq) + H2O(l)}\]
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