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    Identify the two important classes of catalysts

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    Identify the two important classes of catalysts. Analyze the chemical reactions that take place when a biological catalyst combines with a reactant (substrate) to form an unstable intermediate.

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    Solution Preview

    Hi there,

    The two most important classes of catalyst are:

    Heterogeneous catalysts: Here the catalyst is in a different phase (i.e. solid, liquid and gas) to the reactants. Heterogeneous catalysts provide a surface on which the reaction can take place.

    and

    Homogeneous ...

    Solution Summary

    In 175 words, this solution covers the two most important classes of catalyst, as well as the kinds of chemical reactions that occur when a biological catalyst combines with a reactant.

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