Magnesium (Mg) combusts in air to give a brilliant white light that has been used in photographic flashes and emergency flares. How much heat is produced if 10.0 g Mg is combusted with excess oxygen gas? Mg(s) + 12 O2(g) ⟶ MgO(s) ΔHc∘ = −601.6 kJ/mol Report your answer with three significant figures. Provide your answer below: