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The rate and extent of chemical change: reversible reactions and dynamic equilibrium
Practice Questions

72 AQA GCSE Chemistry questions on The rate and extent of chemical change: reversible reactions and dynamic equilibrium, each with instant feedback and a full examiner-style mark scheme.

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Try 2 sample questions on The rate and extent of chemical change: reversible reactions and dynamic equilibrium

Question 1 · 1 mark · Difficulty 1/3

What does the word 'dynamic' mean in dynamic equilibrium?

  1. Both forward and reverse reactions continue, at equal rates
  2. The reaction has stopped completely
  3. The reaction changes direction every few seconds
  4. The concentrations keep rising and falling
Show answer & explanation
✓ Answer: A — Both forward and reverse reactions continue, at equal rates
Award 1 mark. Nothing has stopped: particles keep reacting in both directions, but each substance is being formed exactly as fast as it is used up, so the concentrations hold steady.
Question 2 · 1 mark · Difficulty 1/3

What happens to the concentrations of reactants and products once equilibrium is reached?

  1. They become equal to one another
  2. They fall steadily to zero
  3. They remain constant, though not necessarily equal
  4. They continue to rise
Show answer & explanation
✓ Answer: C — They remain constant, though not necessarily equal
Award 1 mark. Constant does not mean equal: an equilibrium may lie well to one side, with far more product than reactant, and still be perfectly steady.
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AQA GCSE Chemistry: The rate and extent of chemical change: reversible reactions and dynamic equilibrium FAQ

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Are the The rate and extent of chemical change: reversible reactions and dynamic equilibrium questions aligned to the official AQA GCSE Chemistry syllabus?
Every question is written against the published AQA GCSE Chemistry specification, including the exact command words (state, describe, explain, calculate, evaluate, etc.), mark allocations, and difficulty tier you'd see on a real AQA paper. Explanations are written in the style of official examiner mark schemes — they tell you what is being awarded marks and why distractors are wrong, not just whether you got it right. The bank is continually refined to match the latest syllabus updates from AQA.
How is The rate and extent of chemical change: reversible reactions and dynamic equilibrium typically tested on AQA GCSE Chemistry papers?
The rate and extent of chemical change: reversible reactions and dynamic equilibrium appears across multiple question types on real AQA GCSE Chemistry papers — most commonly as multiple-choice questions in the objective section, structured short-answer questions in the main paper, and occasionally as part of an extended response. Kramizo's practice bank reflects that mix: 4-option MCQs, true/false statements, fill-in-the-blank key terms, multi-select questions, and ordering questions. Working through the bank gives you exposure to every question style examiners actually use.

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