GCSE OCR Chemistry A (Gateway)
In short
GCSE OCR Chemistry A (Gateway) has 6 topics: Particles, Elements, Compounds and Mixtures, Chemical Reactions and 3 more. Each topic lists its topics in syllabus order. Start with Particles or jump to the topic you are revising.
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What topics are in GCSE OCR Chemistry A (Gateway)?
The Particle Model
- States of matter
- Changes of state
Atomic Structure
- Subatomic particles
- Isotopes
- Development of the atomic model
Purity and Separating Mixtures
- Pure substances
- Separation techniques
- Chromatography
Bonding
- Ionic, covalent and metallic bonding
Properties of Materials
- Giant structures
- Carbon allotropes
- Nanoparticles
Introducing Chemical Reactions
- Formulae and equations
- Moles
- Conservation of mass
Energetics
- Exothermic and endothermic reactions
- Bond energies
Types of Chemical Reactions
- Redox reactions
- Acids and alkalis
Electrolysis
- Electrolysis of molten and aqueous substances
Predicting Chemical Reactions
- Group 1, 7 and 0
- Transition metals
- Reactivity series
Identifying the Products
- Tests for gases
- Tests for ions
Controlling Reactions
- Rates of reaction
- Factors affecting rate
- Catalysts
Equilibria
- Reversible reactions
- Le Chatelier's principle
Improving Processes and Products
- Extracting metals
- Life cycle assessment
Organic Chemistry
- Alkanes and alkenes
- Crude oil
- Polymers
Interpreting the Earth's Atmosphere
- Evolution of the atmosphere
- Climate change
- Pollutants
How should you use these resources?
Revise
Work through your course topic by topic, in the order it is taught, so nothing gets missed.
Test yourself
Check each topic against what you should be able to do, and practise on exam-style questions as they are added.
Improve
Go back to what you could not do, or work with a tutor to close the gaps before your exams.
GCSE OCR Chemistry A (Gateway): common questions
What topics are in GCSE OCR Chemistry A (Gateway)?
GCSE OCR Chemistry A (Gateway) has 6 topics: Topic 1: Particles; Topic 2: Elements, Compounds and Mixtures; Topic 3: Chemical Reactions; Topic 4: Predicting and Identifying Reactions and Products; Topic 5: Monitoring and Controlling Chemical Reactions; Topic 6: Global Challenges.
How should I revise GCSE OCR Chemistry A (Gateway)?
Work through one topic at a time in order, since later topics build on earlier ones. For each topic, check you can do everything on its list before moving on, and go back to the ones you could not.
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