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HomeAQA GCSE ChemistryQuantitative chemistry: relative formula mass and conservation of mass
AQA · GCSE · Chemistry

Quantitative chemistry: relative formula mass and conservation of mass
Practice Questions

20 AQA GCSE Chemistry questions on Quantitative chemistry: relative formula mass and conservation of mass, each with instant feedback and a full examiner-style mark scheme.

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Try 2 sample questions on Quantitative chemistry: relative formula mass and conservation of mass

Question 1 · 1 mark · Difficulty 1/3

What does the law of conservation of mass state?

  1. The total mass of reactants equals the total mass of products
  2. Mass is always lost in a reaction
  3. Mass is created during a reaction
  4. Mass depends on temperature
Show answer & explanation
✓ Answer: AThe total mass of reactants equals the total mass of products
No atoms are created or destroyed in a chemical reaction, so the total mass of the products equals the total mass of the reactants.
Question 2 · 1 mark · Difficulty 1/3

Which equation correctly links moles, mass and Mr?

  1. moles = mass ÷ Mr
  2. moles = mass × Mr
  3. moles = Mr ÷ mass
  4. moles = mass + Mr
Show answer & explanation
✓ Answer: Amoles = mass ÷ Mr
The number of moles is found by dividing the mass (in grams) by the relative formula mass.
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AQA GCSE Chemistry: Quantitative chemistry: relative formula mass and conservation of mass FAQ

How many AQA GCSE Chemistry questions on Quantitative chemistry: relative formula mass and conservation of mass are there on Kramizo?
Kramizo currently has 20 exam-board-aligned practice questions on Quantitative chemistry: relative formula mass and conservation of mass for AQA GCSE Chemistry, 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 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 Quantitative chemistry: relative formula mass and conservation of mass 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 Quantitative chemistry: relative formula mass and conservation of mass 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 Quantitative chemistry: relative formula mass and conservation of mass typically tested on AQA GCSE Chemistry papers?
Quantitative chemistry: relative formula mass and conservation of mass 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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