Chemistry, 16.06.2021 17:10 ashleyd198308

When copper is heated in air, the solid product that is formed has a greater mass than the original copper. When calcium carbonate is heated in air, the solid product that is formed has less mass than the original calcium carbonate. Why is the mass of the solid product greater in one reaction but less in the other reaction?

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When copper is heated in air, the solid product that is formed has a greater mass than the original...