# Would copper carbonate precipitate from aqueous solution by treatment of calcium carbonate by copper(II) chloride?

Aug 4, 2017

I would think so......

#### Explanation:

And we would represent the equation by.....

$C a C {O}_{3} \left(s\right) + C u C {l}_{2} \left(a q\right) \rightarrow C u C {O}_{3} \left(s\right) \downarrow + C a C {l}_{2} \left(a q\right)$

And how would you know whether the reaction would occur? How else but by experiment?

It is a fact that the ${K}_{\text{sp}}$ of $\text{copper carbonate}$ is $1.4 \times {10}^{-} 10$. And the ${K}_{\text{sp}}$ of $\text{calcium carbonate}$ is $2.8 \times {10}^{-} 9$. And since copper carbonate is more insoluble than calcium carbonate, metathesis would occur, with the result that blue colour of the solution due to $C {u}^{2 +}$ would slowly(?) dissipate.