Solid Copper(II) chloride is dissolved in waterSolid aluminum is then added to the aqueous solution of Copper(II) chlorideA student observes the entire process from start to finish, explain what the student sees making sure to note things such as color changes, etc and explain why the student sees this in terms of what is happening chemically/physically.
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The original solution will be blue because the copper (II) ion is blueDuring the reaction, aluminum will replace copper ion in the solutionSpecifically, aluminum atoms with a neutral charge will give away 3 electrons to become aluminum ions (with a +3 charge)The copper ions in the solution (with a +2 charge) will take 2 electrons each to become copper atoms2 Al + 3 Cu^2+ - 2 Al^3+ + 3 Cu As the reaction proceeds, the reaction will get less blue (and turn clear) as the copper ion is converted to copper atomsThe copper metal will appear as a reddish solid that will likely float at the top of the solution.
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