Decomposition of copper carbonate.

Thermal decomposition to give copper oxide and CO2 – including testing for CO2.

Decomposition of calcium carbonate.

Thermal decomposition to give calcium oxide (lime) CO2

Decomposition of copper sulphate.

Thermal decomposition causing the hydrated salt to lose it’s water of crystallisation.

Decomposition of potassium manganate(VII).

Thermal decomposition producing oxygen – including testing for oxygen.

Decomposition of ammonium dichromate

The spectacular ammonium dichromate ‘volcano’ reaction