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Speed of rxn (reaction) - Coggle Diagram

- - - - bigger surface area to volume ratio of solid of solid reactants
        
        more collisions per unit time between particles between e.g. Hcl and CaCo3
        
        Frequency of effective collisions is higher
        
        Faster speed of reaction
- - - - Reactant particle are closer to each other
        
        More collisions per unit between particles
        
        Frequency of effective collisions is higher
        
        Faster speed of reaction
- - - - More reactant particles per unit volume
        
        More collisions per unit time between particles
        
        Faster speed of reaction
- - - - Move particles have energy greater than or equal to Ea ( energy of activation)
        
        Frequency of effective collisions between... and... is higher
        
        Faster speed of reaction
- - - - Only a small amount is needed
      - Provides an alternative pathway of lower
        activation energy
      - Increases the speed but NOT the yield! (What affects the yield? limiting reagent)
      - Physical appearance may change but chemical properties remain unchanged.
      - Not used up during the reaction (will be regenerated at the end)
      - Impurities can prevent it from working, i.e. poisoned or inactivated by impurities.)
      - Selective in its action (Different catalysts speed up different reactions.)