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5.2 Reversible reactions and equilibria

5.2 Reversible reactions and equilibria

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Question 10

Hydrated copper(II) sulfate, CuSO4⋅5H2O\text{CuSO}_4 \cdot 5\text{H}_2\text{O}CuSO4​⋅5H2​O, is a blue crystalline solid. Anhydrous copper(II) sulfate, CuSO4\text{CuSO}_4CuSO4​, is a white solid. Heat energy is required to decompose hydrated copper(II) sulfate into anhydrous copper(II) sulfate and water. This is a reversible reaction represented by the equation:

CuSO4⋅5H2O(s)⇌CuSO4(s)+5H2O(g) \text{CuSO}_4 \cdot 5\text{H}_2\text{O}(\text{s}) \rightleftharpoons \text{CuSO}_4(\text{s}) + 5\text{H}_2\text{O}(\text{g}) CuSO4​⋅5H2​O(s)⇌CuSO4​(s)+5H2​O(g)

Devise an experiment to demonstrate that this is a reversible reaction.

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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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