IB Chemistry SL
Standard Level IB Chemistry covers atomic structure, bonding, energetics, kinetics, equilibrium, acids and bases, redox, and organic chemistry with a focus on experimental skills.
Difficulty
Challenging
Popularity
66%
Past questions
3
Study tips
5
Key Topics
Exam Format & Dates
May & November, annually
Papers 1–2 ≈ 3h + Internal Assessment
1–7 scale (IB)
4 = passing | 6–7 = excellent
| Section | Duration | Content | Weight |
|---|---|---|---|
| Paper 1 — Multiple Choice + Data | 1 hour 30 minutes | ~30 MCQ + data analysis | 36% |
| Paper 2 — Extended Response | 1 hour 30 minutes | Short + extended answers | 44% |
| Internal Assessment | Coursework (10 hours) | 1 independent investigation | 20% |
Exam Breakdown & Insights
Difficulty · Demanding
Popularity score
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Study Tips
- 1
Draw and label diagrams for every major process — reproducing them from memory is a powerful test of understanding.
- 2
Focus on explaining why things happen, not just what happens — exam questions reward cause-and-effect reasoning.
- 3
Use precise scientific vocabulary; examiners award marks for correct terminology used in context.
- 4
Past papers with mark schemes are the single best IB revision resource — learn exactly how marks are allocated.
- 5
Do not neglect your Internal Assessment: it is a significant chunk of your grade that you control before exam day.
Past Exam Questions
Define Atomic Structure and state the key facts a student must know, using precise scientific terminology.
Explain the mechanism behind Bonding & Structure: describe what happens and, crucially, why it happens. Include a labelled diagram where appropriate.
Design an experiment (or interpret given data) to investigate Energetics. Identify the variables, describe the method, and explain how you would analyse the results.
Common Mistakes to Avoid
- ✕
Cramming content while neglecting experimental-design and data-analysis questions.
- ✕
Describing what happens instead of explaining why — extended questions grade the mechanism, not the observation.
- ✕
Using vague everyday language where precise scientific terminology is required.
Official Resources
Free, official study material for IB Chemistry SL — always start with the source your exam board publishes.
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