WAEC
Nigeria · West Africa 🇳🇬WAEC WASSCE — English Language, Mathematics and 16 elective subjects, each with its own Beginner–Advanced track.
📏 WAEC grades A1–F9. A credit (C6 or better) in five subjects — including English Language and Mathematics — is the standard university entry requirement.
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333 lessons18 subjectsSelf-pacedPremium plan
English LanguageMathematicsPhysicsChemistryBiologyGovernmentEconomicsLiterature-in-EnglishChristian Religious StudiesIslamic Religious StudiesGeographyAccountingHistoryFurther MathematicsCommerceAgricultural ScienceFrenchTechnical Drawing
Free covers 11 of 18 lessons in Chemistry. Intermediate and Advanced lessons are part of Premium — your progress is saved.See Premium →
Beginner
Beginner skill
Atomic structure, the mole concept and bonding — the Chemistry foundations WAEC/JAMB test first.
🔒 Unlocks after all modules
1
🔒 After lessonsAtomic Structure
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StartProtons, Neutrons & Electrons
Lesson + 10-question quiz
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Isotopes
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2
🔒 After lessonsThe Mole Concept
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Moles from Mass
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Mass from Moles
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3
🔒 After lessonsBonding Foundations
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Ionic Bonding
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Covalent Bonding
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Intermediate
Intermediate skill
Periodic trends, concentration and acids/bases — the Chemistry core WAEC/JAMB repeat every year.
1
🔒 After lessonsThe Periodic Table
0/2 passed🔒
Periodic Trends
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Groups & Valence Electrons
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2
🔒 After lessonsSolutions & Concentration
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Concentration of Solutions
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Bonding & Physical Properties
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3
🔒 Module checkpoint · PremiumAcids, Bases & Salts
🔒 Premium0/2 passedAdvanced
Advanced skill
Multi-step stoichiometry and applied acid-base chemistry — the questions that separate top Chemistry scores.
1
🔒 Module checkpoint · PremiumAdvanced Stoichiometry
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🔒 Module checkpoint · PremiumAdvanced Bonding & Periodicity
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🔒 Module checkpoint · PremiumAdvanced Acid-Base Chemistry
🔒 Premium0/2 passedSyllabus coverage · Chemistry
0/32 official topics · 0%32 topics still to cover
- Introduction to chemistry (measurement, scientific method, careers and safety)Practise →
- Structure of the atom (particles, atomic number, mass number, isotopes, relative atomic mass)Protons, Neutrons & Electrons →Isotopes →
- Electronic configuration and quantum numbers (s, p, d orbitals)Practise →
- Standard separation techniques for mixtures and criteria for purityPractise →
- Periodic table and periodicity (trends in properties)Periodic Trends →Bonding & Periodic Properties →
- Period 3 elements, halogens (Group VII) and alkali/alkaline-earth metalsGroups & Valence Electrons →
- First transition series (properties, complex ions)Bonding & Physical Properties →
- Chemical bonds (ionic, covalent, dative, metallic; shapes of molecules)Ionic Bonding →Covalent Bonding →
- Intermolecular forces (hydrogen bonding, van der Waals forces)Bonding & Physical Properties →
- Chemical formulae, equations and the mole conceptMoles from Mass →Mass from Moles →
- Stoichiometry and calculations (mass, volume, concentration, solutions)Moles from Mass →Mass from Moles →
- Kinetic theory and states of matterPractise →
- The gas laws (Boyle's, Charles', Graham's, Avogadro's, Dalton's; ideal gas equation)Practise →
- Liquids and solids (vapour pressure, crystal lattices)Practise →
- Energy and energy changes (enthalpy, exothermic/endothermic, Hess's law, entropy and free energy)Practise →
- Acids, bases and salts (definitions, properties, pH, salt preparation, hydrolysis)The pH Scale →Neutralisation Reactions →
- Acid–base titration and indicatorsNeutralisation Reactions →Applied pH & Neutralisation →
- Solubility of substances (solubility curves, water hardness, applications)Practise →
- Rates of chemical reactions (factors, collision theory, catalysts)Neutralisation Reactions →
- Chemical equilibrium (Le Chatelier's principle, equilibrium constant, industrial applications)Practise →
- Redox reactions (oxidation numbers, balancing redox equations)Practise →
- Electrochemical cells and the electrochemical seriesPractise →
- Electrolysis (Faraday's laws, applications, corrosion)Practise →
- Organic chemistry: general principles (functional groups, homologous series, isomerism, nomenclature, purification)Groups & Valence Electrons →
- Hydrocarbons (alkanes, alkenes, alkynes, benzene; petroleum and its refining)Practise →
- Alkanols, alkanoic acids, esters and alkanoates (soaps and detergents), aminesPractise →
- Chemistry of non-metals and their compounds (hydrogen, oxygen, nitrogen, sulphur, chlorine, carbon)Practise →
- Metals and their compounds (extraction, properties and uses of Na, Ca, Al, Fe, Cu, Zn; alloys)Practise →
- Chemistry, industry and the environment (chemical industries, pollution, biotechnology, nanotechnology)Practise →
- Basic biochemistry (proteins, fats and oils, carbohydrates)Practise →
- Synthetic polymers (addition and condensation polymerisation, plastics, rubber, fibres)Practise →
- Qualitative analysis (tests for cations, anions, gases and organic compounds)Practise →
Ready to test yourself? Sit Chemistry on its own — 4 mock papers in WAEC's real paper format. Paper 3 oral/practical is available only as a tutor-marked sitting.
Chemistry mock papers