GCSE Chemistry Calculations Pack with Answer Key

Every answer machine-checked against the question — no errors.

Moles, balancing equations, reacting masses, concentration, gas volumes, yield, atom economy, empirical formulae and titrations, in ten chapters with worked examples and a complete answer key. Atomic masses are listed in the book and gas volumes use the stated 24 dm³/mol, so every answer is exact.

WHAT YOU GET

• 56 pages, A4, print at home
• 10 chapters, 270 questions, 20 worked examples
• Two worked examples at the start of every chapter, then three graded exercises: Warm-up, Practice and Stretch
• A 20-question mixed practice test at the end
• Full answer key

THE 10 CHAPTERS

1. Relative formula mass
2. Moles
3. Balancing equations
4. Percentage composition
5. Reacting masses
6. Concentration
7. Gas volumes
8. Percentage yield and atom economy
9. Empirical formulae
10. Titration calculations

WORKS WITH ANY EXAM BOARD

This is board-neutral practice at GCSE level. It practises the calculations only: it does not replace learning the science. It is not a past paper, and it is not produced or endorsed by any exam board.

EVERY ANSWER CHECKED

Most worksheet packs contain mistakes. This one doesn't. All 290 items in this book, every question and every worked example, were checked by a computer against the finished PDF before publishing. The checker re-reads what is actually printed on the page, works the answer out for itself and compares. If it couldn't check something, that something didn't go in the book.

To prove the checker works, answers were deliberately broken and it was asked to find them. It found every one.

WHO IT SUITS

• GCSE students in Years 10 and 11
• Parents supporting science at home
• Tutors and teachers wanting ready-to-print practice
• Anyone resitting GCSE Chemistry or Combined Science

FORMAT

Instant digital download. A4 PDF, print-ready. As this is a digital product, all sales are final.

⚡ Instant download · 🖨️ Print at home · ✓ Full answer key · ✓ Every answer checked

MORE IN THIS SERIES

• GCSE Physics Calculations Pack
• GCSE Biology Data and Graphs Pack

How this workbook was made

I design the structure, curriculum sequence and house format for every

workbook, and use software tools — including AI assistance — to help

generate and typeset the practice questions and diagrams. Every answer

is then checked programmatically against the question before publishing.