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fDesc[0] = "Explain why and how a pinball shooter can be used to help understand ideas about reactions.<br /> Describe on a microscopic level what contributes to a successful reaction (with illustrations).<br /> Describe how the reaction coordinate can be used to predict whether a reaction will proceed or slow.<br /> Use the potential energy diagram to determine: The activation energy for the forward and reverse reactions; The difference in energy between reactants and products; The relative potential energies of the molecules at different positions on a reaction coordinate.<br /> Draw a potential energy diagram from the energies of reactants and products and activation energy.";

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