Question

What would happen if copper (II) chloride was placed into a solution of saturated calcium carbonate???

Answer 1

Precipitation of `"copper carbonate"`..........

Explanation:

We would LIKELY see the precipitation of `"copper carbonate"`, and the fairly insoluble `CaCO_3(s)` would pass into solution to give `CaCl_2(aq)`. The colour of the solution would go from dark blue to lighter blue as the `Cu^(2+)` precipitates.

We could represent this process as:

`CuCl_2(aq) + CaCO_3(s) rarr CuCl_2(aq) + CuCO_3(s)darr`

The `"cupric chloride"` is likely to be a complex salt, and is a label of convenience.

But chemistry is an experimental science, so you must do the experiment yourself, and try to rationalize whatever you observe.