Hess Law Chemistry Problems - Enthalpy Change - Constant Heat of Summation

This chemistry video tutorial explains the concept of Hess' law and how to use it to find the enthalpy change of a reaction by finding the heat of summation of individual reactions. This video contains plenty of examples and practice problems showing all necessary calculations. This video is for students studying thermochemistry in high school or college. There are no formulas or equations needed.

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