Methane reacts with oxygen at constant pressure CH4 (g) + 2O2 (g) → 2H2O (l) + CO2 (g) DH = -890 kJ / mol Is this an exothermic or endothermic reaction? (basically answer) Will change in inner energy, YOU be greater or smaller than DH? (basically answer) How much heat is transferred when 4.50 g of methane reacts?

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Q: A scientist measures the standard enthalpy change for this reaction to be -907.4 kJ/mol. 2NH3(g) + 3…

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