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HomeAQA GCSE Combined Science (Trilogy)Chemistry: Chemical Changes
AQA · GCSE · Combined Science (Trilogy)

Chemistry: Chemical Changes
Practice Questions

60 AQA GCSE Combined Science (Trilogy) questions on Chemistry: Chemical Changes, each with instant feedback and a full examiner-style mark scheme.

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✨ Revision guide includes key terms, worked examples and exam technique for Chemistry: Chemical Changes.

Try 2 sample questions on Chemistry: Chemical Changes

Question 1 · 1 mark · Difficulty 1/3

What does the reactivity series rank metals by?

  1. How readily they lose electrons / react
  2. Their mass
  3. Their colour
  4. Their melting point
Show answer & explanation
✓ Answer: AHow readily they lose electrons / react
The reactivity series lists metals in order of how readily they react, which relates to how easily they form positive ions by losing electrons.
Question 2 · 1 mark · Difficulty 1/3

What are the products when a dilute acid reacts with a metal?

  1. A salt and hydrogen
  2. A salt and water
  3. A salt, water and carbon dioxide
  4. Only a salt
Show answer & explanation
✓ Answer: AA salt and hydrogen
Acid + metal → salt + hydrogen. The reactive metal displaces hydrogen from the acid, producing a salt and hydrogen gas.
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AQA GCSE Combined Science (Trilogy): Chemistry: Chemical Changes FAQ

How many AQA GCSE Combined Science (Trilogy) questions on Chemistry: Chemical Changes are there on Kramizo?
Kramizo currently has 60 exam-board-aligned practice questions on Chemistry: Chemical Changes for AQA GCSE Combined Science (Trilogy), with new questions added every week. Each question gives you instant feedback and a full examiner-style mark scheme that tells you exactly what would earn marks on a real AQA paper. The questions span the full difficulty range — from straightforward recall (level 1) right up to multi-step reasoning and evaluation (level 3) — so the bank works for first-pass revision and final exam-week stress testing alike.
Is Kramizo free for AQA GCSE students preparing for Combined Science (Trilogy)?
Yes — completely free. Every student gets 45 questions a day on the free plan, with no card required and no trial countdown. That free quota works across every subject and every topic in our bank, so you can mix Chemistry: Chemical Changes practice with other Combined Science (Trilogy) topics or even switch to a totally different AQA subject without paying anything. Kramizo's optional Pro plan removes the daily cap and adds detailed progress analytics, but the free tier is the real product — used by thousands of GCSE, IGCSE and CSEC students.
Are the Chemistry: Chemical Changes questions aligned to the official AQA GCSE Combined Science (Trilogy) syllabus?
Every question is written against the published AQA GCSE Combined Science (Trilogy) 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 Chemistry: Chemical Changes typically tested on AQA GCSE Combined Science (Trilogy) papers?
Chemistry: Chemical Changes appears across multiple question types on real AQA GCSE Combined Science (Trilogy) 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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