Simple Reactions on a Potential Energy Surface

The theory of chemical reactions has many facets including elaborate quantum mechanical scattering approaches that treat the kinetic energy of atoms by proper wave mechanical methods. These approaches to chemical reaction theory go far beyond the capabilities of a product like HyperChem as many of the ideas are yet to have wide-spread practical implementations. 

Fortunately, the theory of chemical reactions need not always require such sophistication. Indeed, since nuclei (atoms) are much heavier than electrons you can use classical mechanics to under- 

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