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When 5.00 g of solid barium react with chlorine gas to produce solid barium chloride, 31.1 kJ of heat is released. Calculate the heat when 1 mole of barium chloride is produced. q = 6.22 kJ q = -6.22 kJ q = -31.1 kJ q = -855 kJ q = 855 kJ q = 31.1 kJ