Kramizo
Log inSign up free
Home › AQA GCSE Chemistry › The rate and extent of chemical change: calculating rates of reaction
AQA · GCSE · Chemistry

The rate and extent of chemical change: calculating rates of reaction
Practice Questions

40 AQA GCSE Chemistry questions on The rate and extent of chemical change: calculating rates of reaction, each with instant feedback and a full examiner-style mark scheme.

⚡ Start Quiz on The rate and extent of chemical change: calculating rates of reaction →📖 Read Revision Notes
✨ Revision guide includes key terms, worked examples and exam technique for The rate and extent of chemical change: calculating rates of reaction.

Try 2 sample questions on The rate and extent of chemical change: calculating rates of reaction

Question 1 · 1 mark · Difficulty 1/3

The rate of a reaction can be found by measuring:

  1. The mass of the bench
  2. The room temperature only
  3. The amount of reactant used or product formed over time
  4. The colour of the flask
Show answer & explanation
✓ Answer: C — The amount of reactant used or product formed over time
Rate is the change in amount of a reactant or product per unit time.
Question 2 · 1 mark · Difficulty 1/3

A rate of reaction is followed by placing the flask on a balance and recording the loss in mass. Which unit is used for the rate?

  1. g/s
  2. cm³/s
  3. g/cm³
  4. mol/s
Show answer & explanation
✓ Answer: A — g/s
Award 1 mark. Mass in grams is divided by time in seconds. The unit g/cm³ is a density and has nothing to do with how quickly the reaction proceeds.
⚡ Start a Quiz on The rate and extent of chemical change: calculating rates of reaction →
20 questions · 25 min · free

AQA GCSE Chemistry: The rate and extent of chemical change: calculating rates of reaction FAQ

Is Kramizo free for AQA GCSE students preparing for Chemistry?
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 The rate and extent of chemical change: calculating rates of reaction practice with other Chemistry 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 The rate and extent of chemical change: calculating rates of reaction 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: calculating rates of reaction typically tested on AQA GCSE Chemistry papers?
The rate and extent of chemical change: calculating rates of reaction 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.

Lock in The rate and extent of chemical change: calculating rates of reaction before exam day.

Start practising in 30 seconds — no card required.

⚡ Start Quiz Free →