(Solved): A heat of formation is A) The heat produced in a reaction when 1 mole of a compound is produced. B) ...

A heat of formation is A) The heat produced in a reaction when 1 mole of a compound is produced. B) The heat absorbed in a reaction when 1 mole of reactants react. C) The heat required to make 1 mole of a compound from its elements in their standard states. D) The heat absorbed or produced in a combination reaction.