Calcium carbonate is a white mineral. A chemist heats calcium carbonate, Cacos, to produce carbon dioxide, CO2, and a white powder, Cao. The following chemical equation shows the reaction.
CaCO3 - CO + Cao
Write your answers in the space provided.
• 1. EXPLAIN why the products have different properties than the reactants.
• 2. DETERMINE if the atoms are conserved in this reaction. EXPLAIN what measurements the chemist can make to confirm whether
atoms are conserved in the reaction.

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