copper chloride+magnesium--> magnesium chloride+ copper?

Question

in this equation the copper would be part of the solution but it would not react with anything so it would be left by itself.
I want to kno... in the solution, would the colour of copper be it's own colour of would it change?

Answer 1

if the copper is exacly how it says in this equation then yes it will be coppers normal colour.
but if some how another reaction took place, for example, oxidisation, then it would change to green

Answer 2

Copper Chloride Magnesium

Answer 3

I assume you are talking about Copper (II) Chloride, CuCl2...instead of Copper (I) Chloride (since the later is hardly soluble in water and will naturally be oxidized further to CuCl2).

A solution os Copper (II) Chloride is blue. If the solution becomes concentrated enough, the CuCl2 solution will turn dark green.

Magnesium is a much more reactive metal than Copper. If Magnesium metal (solid) is added to a Copper ___ solution, the Copper will be precipitated out and the Magnesium will take its place. It is a single replacement reaction. The Magnesium replaces the Copper. Copper metal precipitates out as a solid.
This would be a very spontaneous reaction.

CuCl2 (aq) + Mg (s) --> MgCl2 (aq) + Cu (s)

One can generalize it a little bit more and re-write this reaction as a net-ionic reaction when one takes into account that the Chloride ions are spectators in the reaction and stay in solution on both the product and reactant side of the equation.

Cu+2 (aq) + Mg (s) --> Mg+2 (aq) + Cu (s)

Here, the Cu+2 ion in solution is reduced to Copper metal and precipitates out, while the Magnesium metal is oxidized to the Mg+2 ion and goes into solution.

As the Copper leaves solution (i.e. it goes from CuCl2 to MgCl2), the noticeable Copper color would be lost...the solution would no longer be blue if enough of the Copper was precipitated out. The MgCl2 solution is essentially colorless, in stark contrast to the CuCl2 solution.

Answer 4

According to your question if practically done this reaction gives mettalic copper which is reddish brown in colour and on exposure to atmosphere for a long period it would turn blackish due to formation of CuO and also it may turn greenish due to formation of CuCO3(basic).

Answer 5

Magnesium hydroxide- Mg(OH)2 Its a mild base.

Answer 6

it could be pink