15. What is Hess's Law? How IS It used? Why is It Importaht in chemistry? Explalh your Ideas and provide at least one relevant example to support your answer.

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15. What is Hess's Law? How is it used? Why is it important in chemistry? Explain your ideas and provide
at least one relevant example to support your answer.
Transcribed Image Text:15. What is Hess's Law? How is it used? Why is it important in chemistry? Explain your ideas and provide at least one relevant example to support your answer.
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Hess’s law states that the overalls energy change in the chemical reaction is equal to the sum of energy changes in the individual reactions. It is used when a directly measured enthalpy change of a reaction is not given.

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