A visible activated complex

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A simple demonstration of catalysis also introducing the idea of an activated complex and to allow discussion of the mechanism of catalysis

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A visible activated complex
Experiment | PDF, Size 88.9 kb

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This practical is part of our Classic chemistry demonstrations collection.

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Level

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Specification

Scotland
- Higher
  - SQA Chemistry
    - 3. Chemistry in society
      - (b) Controlling the rate
        (ii) Reaction pathways
        A catalyst provides an alternative reaction pathway with a lower activation energy.
Wales
- A/AS level
  - WJEC Chemistry
    - Unit 2: ENERGY, RATE AND CHEMISTRY OF CARBON COMPOUNDS
      - 2.2 Rates of reaction
        (e) characteristics of a catalyst
        (f) how catalysts increase reaction rates by providing alternative routes of lower activation energy
- GCSE
  - WJEC Chemistry
    - Unit 1: CHEMICAL SUBSTANCES, REACTIONS and ESSENTIAL RESOURCES
      - 1.5 RATE OF CHEMICAL CHANGE
        (d) catalysts as substances that increase the rate of a reaction while remaining chemically unchanged and that they work by lowering the energy required for a collision to be successful (details of energy profiles are not required)
  - WJEC Combined science
    - Unit 2: Chemistry 1
      - 2.5 RATE OF CHEMICAL CHANGE
        (d) catalysts as substances that increase the rate of a reaction while remaining chemically unchanged and that they work by lowering the energy required for a collision to be successful (details of energy profiles are not required)
Northern Ireland
- GCSE
  - CCEA Chemistry
    - Unit 2: Further Chemical Reactions, Rates and Equilibrium, Calculations and Organic Chemistry
      - 2.3 Rates of reaction
        2.3.5 demonstrate knowledge and understanding that a catalyst is a substance which increases the rate of a reaction without being used up and recall that transition metals and their compounds are often used as catalysts;
  - CCEA Double award science
    - Unit C2: Further Chemical Reactions, Rates and Equilibrium, Calculations and Organic Chemistry
      - 2.3 Rates of reaction
        2.3.5 demonstrate knowledge and understanding that a catalyst is a substance which increases the rate of a reaction without being used up and recall that transition metals and their compounds are often used as catalysts;
- A/AS level
  - CCEA Chemistry
    - Unit AS 2: Further Physical and inorganic Chemistry and an Introdution to Organic Chemistry
      - 2.9 Kinetics
        2.9.1 recall how factors, including concentration, pressure, temperature and catalyst, affect the rate of a chemical reaction;
England
- GCSE
- A/AS level

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