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When a chemist burns hydrogen according to the reaction below she finds that the reaction releases heat. (It is exothermic.)

2H2(g) + O2(g) 2H2O(g)

The enthalpy of the reaction DH = -484 kJ. What is the enthalpy change (in kJ) when 1 grams of hydrogen are burned?

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Category:- Chemistry
Reference No.:- M91085911

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