IB Chemistry HL, marked to the mark scheme.
Practise every topic on the HL specification and get each answer checked against the published scheme, point by point — with the wording that would have earned the marks you missed.
No card needed
Built for HL, not adapted to it.
IB Chemistry HL spans 6 topics, from Models of the particulate nature of matter to What are the mechanisms of chemical change?, and Exaim covers all 22 subtopics — with practice written for the HL specification rather than adapted from another board's.
Chemistry rewards method — the steps of a calculation, the state symbols, a correctly balanced equation — and a right answer reached the wrong way still drops the marks. Exaim marks your written answers the way HL's own examiners do, one marking point at a time, so every question shows you where a real mark was won or lost.
What you get with every HL Chemistry course.
The same thing in every subject: real exam questions, marked properly, and a clear next step.
Marked like an examiner would
Write the answer in full and get it checked against your board’s published scheme, point by point, with the wording that would have earned each mark.
Built for your exact board
Not a generic summary written for everyone. Questions, notes and mark schemes all follow the specification you are actually sitting.
Practice, papers and timed mocks
Topic questions when you are learning something, full papers under exam conditions when you are ready to find out.
Handwritten work included
Photograph a written answer or a diagram and it is marked the same way — so you can revise on paper if that is how you work.
A plan that reorders itself
Every mark you drop becomes scheduled practice, so the weakest topic is always next and you never open the app wondering what to do.
How HL Chemistry practice actually works.
Not a video you watch. A question you answer, marked the way an examiner would.
01
Answer a real exam question
Type it, write it on paper and photograph it, or draw the diagram. Full sentences, the way you would in the exam.
02
It is marked point by point
Checked against your board’s published mark scheme, one mark point at a time — with the wording that would have earned the ones you missed.
03
Your plan moves
Every mark you drop becomes scheduled practice. The weakest topic is next, so you never open it wondering what to do.
Every HL Chemistry topic.
The whole IB specification, broken into the subtopics you actually revise and get tested on.
Models of the particulate nature of matter
5- Introduction to the particulate nature of matter
- The nuclear atom
- Electron configurations
- Counting particles by mass: The mole
- Ideal gases
Models of bonding and structure
4- The ionic model
- The covalent model
- The metallic model
- From models to materials
Classification of matter
2- The periodic table: Classification of elements
- Functional groups: Classification of organic compounds
What drives chemical reactions?
4- Measuring enthalpy changes
- Energy cycles in reactions
- Energy from fuels
- Entropy and spontaneity
How much, how fast and how far?
3- How much? The amount of chemical change
- How fast? The rate of chemical change
- How far? The extent of chemical change
What are the mechanisms of chemical change?
4- Proton transfer reactions
- Electron transfer reactions
- Electron sharing reactions
- Electron-pair sharing reactions
Studying the other level?
Chemistry is covered at both SL and HL. The specifications differ, so the practice does too.
Common questions.
How is IB Chemistry HL marked on Exaim?
You write a real exam-style answer and it is marked against HL's published mark scheme, point by point — the same marking points an examiner uses. You see exactly which points you earned, which you missed, and the wording that would have earned them.
How many topics does IB Chemistry HL cover?
The whole specification: 6 topics, from Models of the particulate nature of matter to What are the mechanisms of chemical change?, broken into 22 subtopics you revise and get tested on. Every one has practice, and the full list is on this page.
Is this built for HL, or a generic chemistry course?
Built for HL. The questions, the topics and the marking all follow the HL specification — not one generic chemistry course with a different level name on the front.
Can I try IB Chemistry HL for free?
Yes — start free with no card. You can practise Chemistry questions and see exactly how the marking works before you decide anything.
I sit a different level — is Chemistry covered for others?
Yes. IB Chemistry is covered for SL too, each built for that level's own specification. The links are further up this page.
Start IB Chemistry HL free.
Practise a few questions and see how the marking works before you decide anything.
- No card needed
- Pro is $9.99/month or $99/year
- Every subject included