Calculate AGan for the reaction: CaCO;(s) - CaO(s) + CO2(g) Use the following reactions and given AGn values: Ca(s) + CO:(3) + 10(g) 2 Ca(s) + O2(g) → 2 CaO(s) + CaCO3(s) AGxn = -734.4 kJ AGxn = -1206.6 kJ

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