Calculate the heat of formation, in \( \mathrm{kJ} / \mathrm{mol} \), of calcium carbonate given the heat of reaction of the decomposition of calcium carbonate into calcium oxide and carbon dioxide. Is the reaction endothermic or exothermic? Is calcium carbonate more stable or less stable than the products? (5 pts)The heat of formation of calcium oxide is \( -635.5 \mathrm{~kJ} / \mathrm{mol} \), the heat of formation of carbon dioxide is \( -393.5 \mathrm{~kJ} / \mathrm{mol} \), and the heat of reaction is \( 178.1 \mathrm{~kJ} \).\[ \mathrm{CaCO}_{3}(\mathrm{~s}) \rightarrow \mathrm{CaO}_{(s)} \mathrm{CO}_{2}(\mathrm{~g}) \]
