State reaction exothermic or endothermic

Reference no: EM13170764

Calcium oxide (lime) reacts with carbon dioxide to form calcium carbonate (chalk). CaO(s) + CO2(g) ? CaCO3(s) ?H = -178.4 kJ

(a) Is this reaction exothermic or endothermic?

(b) How many kilojoues of heat are evolved in the reaction of 350.0 g of CaO(s) with an excess of carbon dioxide?

Reference no: EM13170764

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