Homogenous Catalysts
Homogenous catalysts are in the same physical state as the reactants. During the course of the reaction an intermediate species is formed. The intermediate then reacts to form the final product.

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Key terms in this lesson
- intermediate
- A species formed in one step of a reaction mechanism and used up in a later step, so it does not appear in the overall equation.
- activation energy
- The minimum energy required for a collision between particles to result in a reaction.
More in Redox Reactions
- Tollens Reagent
- Redox Potential
- Redox Titrations
- Heterogenous Catalysts
- Autocatalysis
- Hydration of Metal Ions
- Reaction with Ammonia Solution
- Reaction with Sodium Hydroxide
All 21 lessons in Redox Reactions · All OCR A-level Chemistry topics