7 min read
This study guide covers bond energetics, focusing on how energy changes during chemical reactions. It explains that breaking bonds requires energy (endothermic) and forming bonds releases energy (exothermic). The guide defines bond dissociation energy (BDE), describes BDE trends related to bond strength and length, and shows how to calculate the enthalpy of reaction (ΔH) using BDEs with the formula: ΔH = ΣH(reactants) - ΣH(products). It includes example problems, practice questions, and exam tips.
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Question 1 of 9
Breaking a chemical bond is like snapping a twig 💥. Does this process require or release energy?
Releases energy
Requires energy
Sometimes requires, sometimes releases
Neither requires nor releases