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Chemistry 21 Online
OpenStudy (anonymous):

If the formation of NaCl proceeds according to the following equation and change in enthalpy, what is the reaction and change in enthalpy for the decomposition of 2 moles of NaCl? Na+ ½Cl2→NaCl , ΔH= –411 kJ 2Na+2Cl →2NaCl, ΔH= –411 kJ 2Na+2Cl →2NaCl , ΔH= –822 kJ 2NaCl →2Na+2Cl ,ΔH= 822kJ 2NaCl →2Na+2Cl , ΔH= 411 kJ

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