This chemical reaction involves the combination of calcium oxide (CaO) with copper(II) chloride (CuCl2) to form calcium chloride (CaCl2), copper oxide (CuO), and carbon dioxide (CO2). The reaction proceeds as follows:

CaO + CuCl2 -> CaCl2 + CuO + CO2

Additionally, the resulting calcium chloride (CaCl2) can react with water (H2O) to form calcium hydroxide (Ca(OH)2) and release heat in an exothermic reaction:

CaCl2 + H2O -> Ca(OH)2 + heat

Furthermore, calcium hydroxide (Ca(OH)2) can react with carbon dioxide (CO2) in the air to form calcium carbonate (CaCO3) in a neutralization reaction:

Ca(OH)2 + CO2 -> CaCO3 + H2O

Overall, the chemical reactions involved in the process are:

CaO + CuCl2 -> CaCl2 + CuO + CO2
CaCl2 + H2O -> Ca(OH)2 + heat
Ca(OH)2 + CO2 -> CaCO3 + H2O

These reactions result in the formation of calcium chloride, copper oxide, calcium hydroxide, calcium carbonate, and carbon dioxide.