GCSE Chemistry – Reversible and irreversible reactions

Last updated: 16/06/2020
OCR 21st Century GCSE Science – Combined science foundation Making useful chemicals GCSE Chemistry – Reversible and irreversible reactions

Learning Objectives

-I can describe enzymes as biological catalysts
-I can recall that some reactions are reversible
-I can define dynamic equilibrium
-I can describe what happens to the energy in a reversible reaction, where one direction is exothermic, and the other is endothermic

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  1. Current
  2. Review
  3. Answered

  1. Which of the following is a type of catalyst?

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  2. Which of the following is a type of biological catalyst?

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  3. What is the definition of a reversible reaction?

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  4. What is the definition of an irreversible reaction?

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  5. What arrow is used to signify a reversible reaction?

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  6. What arrow is used to signify an irreversible reaction?

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  7. Which of the following statements is true?

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  8. A reversible reaction has an endothermic backward reaction, what energy change will take place for the forward reaction?

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  9. A reversible reaction has an exothermic backward reaction, what energy change will take place for the forward reaction?

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  10. A reversible reaction has an endothermic forward reaction, what energy change will take place for the backward reaction?

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  11. A reversible reaction has an exothermic forward reaction, what energy change will take place for the backward reaction?

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  12. A reversible reaction has an endothermic backward reaction, what energy change will take place?

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  13. A reversible reaction has an exothermic backward reaction, what energy change will take place?

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  14. A reversible reaction has an endothermic forward reaction, what energy change will take place?

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  15. A reversible reaction has an exothermic forward reaction, what energy change will take place?

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  16. A reversible reaction has an endothermic forward reaction, what will its backward reaction be?

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  17. A reversible reaction has an exothermic forward reaction, what will its backward reaction be?

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  18. What is the definition of dynamic equilibrium?

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