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Hello friends, in this class we will study the famous Hess's law, a very interesting thermochemical way of calculating delta H. Not needing the variations in enthalpies of formation, Hess's law uses intermediate reactions to determine the value of Delta H. Let's try to understand Hess's Law graphically, learn how to algebraically manipulate a chemical equation and apply it to examples of typical college entrance exam and Enem questions. Have a good class! Video link: • HESS'S LAW - THERMOCHEMISTRY Thermochemistry Playlist: • THERMOCHEMISTRY Follow on Instagram: https://www.instagram.com/profzanin/?...