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5.2 Reversible reactions and equilibria

5.2 Reversible reactions and equilibria

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Question 5

When sulfur dioxide and oxygen react to form sulfur trioxide, the reaction can reach a dynamic equilibrium in a closed flask.

Use words from the box to complete the sentences about dynamic equilibrium. Each word may be used once, more than once, or not at all.

backward | constant | different | equal | reversible | slower

Dynamic equilibrium can only occur when the reaction is .................... . At equilibrium, the rates of the forward and backward reactions are .................... .

[2]
Markscheme

5.2 Reversible reactions and equilibria Questions

  1. GCSE
  2. /Chemistry
  3. /5.2 Reversible reactions and equilibria

38 exam-style questions on Edexcel GCSE Chemistry 5.2 Reversible reactions and equilibria, covering 5.2.1 Reversible reactions and dynamic equilibrium, 5.2.2 The Haber process, and 5.2.3 Changing the position of a dynamic equilibrium. Each one has a worked solution and a mark scheme showing where the marks go.

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