Re: Using Copper carbonate, How do you form copper sulphate crystals?

As you probably know, acids react with carbonates to produce carbon dioxide 
gas, which bubbles off. The other product would then have to be the salt of 
the metal whose carbonate you used, and the acid you used. If you use 
hydrochloric acid on calcium carbonate, for example, you would produce 
calcium chloride.

You can use this in your problem -- all you have to do is to work out which 
acid to use with your copper carbonate.

When you get that right, the second problem is how to get the copper sulfate 
as crystals. To get good crystals, you may need to exploit the difference in 
solubility of copper sulfate in hot and cold water, or to reduce the volume 
of liquid in the solution by boiling some of it away, or both.