Thermal Decomposition of Carbonates

[sb.neethu]

Hi,

I have a practical assessment tomorrow which deals with the Thermal Decomposition of a metal Carbonate.

Is it possible to write Ionic Equations for the reaction? Ionic solids and solutions are involved, but the reactions seem to be Double Decomposition, especially the test for CO₂

Also, how is it possible to predict the state(solid, liquid,gas) of a chemical?

 

[sb.neethu]

CuCO₃ + CuO --> CuO + CO₂

CO₂ + Ca(OH)₂ --> CaCO₃ +H₂O

CuO + H₂SO₄ --> CuSO₄ + H₂O

 

[Borek]

Some of these reactions take place in solution, so some reagents will be in the form of ions.

 

[chemisttree]

Your first reaction has an unnecessary CuO on the reactants side.