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Question

Find ΔH° for BaCO39s) => BaO(s) + CO2(g) given that 2 Ba(s) + O29g) => BaO(s) ΔH° = -1107.0 kJ Ba(s0 + CO2(g) + 1/2 O2(g) => BaCO3(s) ΔH° = -822.5 kJ A. -1929 kJ B. -1376.0 kJ C. -284.5 kJ D. 269.0 kJ E. 537 kJ