What is the change in enthalpy in kilojoules when 2.30 mol of Mg is completely reacted according to the following reaction Mg(s) + O2(g) → MgO(s) AH = -1204 kJ

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Q: The H-0- H angle in water molecule is about: 19. (a) 90 (C) 135° (b) 105 (d) 180°

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