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6.2 Reversible reactions and dynamic equilibrium

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Question 8

A technician wants to check whether a sample of gas has been dried. She passes the gas over some white anhydrous copper(II) sulfate. The solid turns blue.

Which conclusion is correct?

[1]
A

The gas is made up only of water vapour

B

The gas has taken water out of the copper(II) sulfate

C

The gas has been completely dried

D

The gas still contains some water vapour

Markscheme

6.2 Reversible reactions and dynamic equilibrium Questions

  1. GCSE
  2. /Chemistry
  3. /6.2 Reversible reactions and dynamic equilibrium

109 exam-style questions on AQA GCSE Chemistry 6.2 Reversible reactions and dynamic equilibrium, covering 6.2.1 Reversible reactions, 6.2.2 Energy changes and reversible reactions, 6.2.3 Equilibrium, 6.2.4 The effect of changing conditions on equilibrium, 6.2.5 The effect of changing concentration, 6.2.6 The effect of temperature changes on equilibrium, and 6.2.7 The effect of pressure changes on equilibrium. Each one has a worked solution and a mark scheme showing where the marks go.

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