15. Calcium carbonate is a white mineral. A chemist heats calcium carbonate, CaCO₃, to produce carbon dioxide, CO₂, and a white powder, CaO. The following chemical equation shows the reaction
CaCO₃ -----> CO + CaO
Compare the properties of the products and reactants in this reaction.
Identify whether the equation shows the conservation of matter.
Explain how the equation shows or does not show the conservation of matter.