U5 Jan 04.PDF - chemhume.co.uk

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enthalpy of. ____..______ M + +e_+ _1_O magnesium. A 9 (9) 2 2(9) oxide. AH3 = +736 kJ mol '1 mil—~— Mgig) +'502(9). AH2 = +149 kJ mol '1. M9(S)+l202(9).