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OpenStudy (anonymous):
How many kilojoules of heat are absorbed when 7.40g of MgO(s) is decomposed into Mg(s) and O 2 (g) at constant pressure? 2Mg(s)+O 2 (g)→2MgO(s)ΔH=−1204kJ
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OpenStudy (aaronq):
ΔH=−1204kJ in kj/mol?
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