plumiGCSE & A-Level Chemistry revision app for iPad Write 57,100 J where the scheme says 57.1 kJ. You still get the mark.
Write the calculation by hand, the way you would in the exam. Where Plumi’s mark scheme gives a value, Plumi checks yours by arithmetic.Write the calculation by hand, the way you would in the exam.
It’s free and iPad only, so send it there.Free to download on the App Store. Runs on iPad with iPadOS 17 or later. A finger works too, if your Pencil’s gone missing.
Your numbers are checked, not just read.
- 01
The curve comes already drawn.
The reaction profile above came with an AQA GCSE question. Your answer goes on the page under it.
- 02
Fewer figures can still count.
Where the scheme gives a value, Plumi checks yours by arithmetic. If the question doesn’t ask for a precision, it uses your board’s rule on how many figures will do.
- 03
Moles gets a square of its own.
Its colour on your topic map comes from how your marked moles answers went, so you can see when it’s time to go back to it.
Your topic map follows your board’s units.
GCSE and A-Level Chemistry, for AQA, OCR and Edexcel. Each topic in a unit gets its own square.
GCSE Chemistry
AQA8462
- Atomic structure and the periodic table
- Bonding, structure and the properties of matter
- Quantitative chemistry
- Chemical changes
- Energy changes
- The rate and extent of chemical change
- Organic chemistry
- Chemical analysis
- Chemistry of the atmosphere
- Using resources
- Practical skills in chemistry
OCRJ248
- Particles
- Elements, compounds and mixtures
- Chemical reactions
- Predicting and identifying reactions and products
- Monitoring and controlling chemical reactions
- Global challenges
- Practical skills
Edexcel1CH0
- Key concepts in chemistry
- States of matter and mixtures
- Chemical changes
- Extracting metals and equilibria
- Separate chemistry 1
- Groups in the periodic table
- Rates of reaction and energy changes
- Fuels and Earth science
- Separate chemistry 2
A-Level Chemistry
AQA7405
- Physical chemistry
- Inorganic chemistry
- Organic chemistry
- Practical skills and maths in chemistry
OCRH432
- Practical skills in chemistry
- Foundations in chemistry
- The periodic table and energy
- Core organic chemistry
- Physical chemistry and transition elements
- Organic chemistry and analysis
Edexcel9CH0
- Atomic structure and the periodic table
- Bonding and structure
- Redox I
- Inorganic chemistry and the periodic table
- Formulae, equations and amounts of substance
- Organic chemistry I
- Modern analytical techniques I
- Energetics I
- Kinetics I
- Equilibrium I
- Equilibrium II
- Acid-base equilibria
- Energetics II
- Redox II
- Transition metals
- Kinetics II
- Organic chemistry II
- Organic chemistry III
- Modern analytical techniques II
You choose your board the first time you open it.
Chemistry questions
Which Chemistry specifications does Plumi follow?
GCSE and A‑Level Chemistry for AQA, OCR and Edexcel. The units for each are listed on this page, and the topics in your board’s units become the squares on your topic map.
Are these real Chemistry past paper questions?
No. Plumi writes its own in your board’s style, and the mark scheme for each. For the real thing, the Papers tab links to the boards’ A‑Level past papers, mark schemes and grade boundaries. Plumi isn’t affiliated with any exam board.
Are the required practicals covered?
On most boards, yes. Where your board’s practicals are on your Chemistry topic map, Plumi sets and marks practical questions like any other.
Does it understand chemical formulae?
Yes. It reads Ca(OH)2 as one calcium, two oxygens and two hydrogens, so a right formula counts however your handwriting spaces it. If Plumi isn’t sure about a mark, it says so, and that mark stays off your topic map until you’ve checked it.
Does it check my calculations?
Yes. Where the mark scheme states a value, Plumi checks yours by arithmetic. If you think it missed a mark you earned, tap "I disagree" and it looks again.