Resources
Resources by Nouman Ahmed
188 published. Showing 97 to 144.
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Revision notes
Formulae, Equations and the Mole: Revision Notes
Condensed recall notes on formulae, balancing, relative masses and mole calculations for Cambridge IGCSE 0620 and O Level 5070 — every equation in one place.
Cambridge · IGCSE, O Level
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Practice questions
GCSE Chemistry: Atomic Structure and the Periodic Table — Practice Questions
Original exam-style practice questions with full worked answers spanning C1.2 Atomic structure (Papers 1 and 3) and C4.1 group trends and the periodic table (Papers 2 and 4) for GCSE Chemistry.
OCR · GCSE
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GCSE Chemistry: Atomic Structure and the Periodic Table — Revision Notes
Condensed recall notes covering both C1.2 Atomic structure (assessed on Papers 1 and 3) and C4.1 Predicting chemical reactions – periodic table development and Group 1/7/0 properties (assessed on Papers 2 and 4) – for GCSE Chemistry.
OCR · GCSE
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Practice questions
IGCSE Chemistry: Identification of Ions and Gases — Practice Questions
Original exam-style practice questions with full worked answers on cation tests, anion tests, gas tests and flame tests for IGCSE Chemistry.
Cambridge · IGCSE, O Level
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Identification of Ions and Gases: Revision Notes
Condensed recall notes on every qualitative analysis test — cations, anions, gases and flame colours — for Cambridge IGCSE 0620 and O Level 5070.
Cambridge · IGCSE, O Level
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Practice questions
Ionic, Covalent and Metallic Bonding: Practice Questions
Original exam-style practice questions with full worked answers on bonding types, structures and properties.
Cambridge · IGCSE, O Level
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Ionic, Covalent and Metallic Bonding: Revision Notes
Condensed recall notes on ionic, covalent, giant covalent and metallic bonding for Cambridge IGCSE 0620 and O Level 5070 — structure-to-property tables and exam traps.
Cambridge · IGCSE, O Level
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Practice questions
Metal Properties and Reactivity: Practice Questions
Original exam-style practice questions with full worked answers on the reactivity series, extraction, displacement, rusting and alloys.
Cambridge · IGCSE, O Level
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Metal Properties and Reactivity: Revision Notes
Condensed recall notes on metal properties, the reactivity series, displacement and rusting for Cambridge IGCSE 0620 and O Level 5070.
Cambridge · IGCSE, O Level
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Practice questions
OCR A Level Chemistry: Amount of Substance — Practice Questions
Original exam-style practice questions with full worked answers on moles, the ideal gas equation, titrations and percentage yield for OCR A Level Chemistry.
OCR · A Level
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OCR A Level Chemistry: Amount of Substance — Revision Notes
Condensed recall notes on the mole, empirical formulae, titrations, gas volumes, yield and atom economy for OCR A Level Chemistry H432.
OCR · A Level
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Practice questions
IGCSE Chemistry: Organic Chemistry — Formulae and Naming — Practice Questions
Original exam-style practice questions with full worked answers on homologous series, isomerism, alkanes, alkenes and alcohols for IGCSE Chemistry.
Cambridge · IGCSE, O Level
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Organic Chemistry: Formulae and Naming — Revision Notes
Condensed recall notes on homologous series, functional groups, isomerism and naming organic compounds for Cambridge IGCSE 0620 and O Level 5070.
Cambridge · IGCSE, O Level
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Practice questions
OxfordAQA A Level Chemistry: Equilibria and Le Chatelier — Practice Questions
Original exam-style practice questions with full worked answers on Le Chatelier, Kc and industrial compromise conditions, with labelled International A2 Kp extension questions.
OxfordAQA · AS Level
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OxfordAQA A Level Chemistry: Equilibria and Le Chatelier Principle — Revision Notes
Condensed recall notes on dynamic equilibrium, Kc, Le Chatelier principle and industrial compromise for International A Level Chemistry (with the International A2 Kp extension, assessed in Unit 4, flagged separately).
OxfordAQA · AS Level
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Practice questions
OxfordAQA IGCSE Chemistry: Quantitative Chemistry — Practice Questions
Original exam-style practice questions with full worked answers on moles, formula mass, reacting masses and concentration.
OxfordAQA · IGCSE
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OxfordAQA IGCSE Chemistry: Quantitative Chemistry — Revision Notes
Condensed recall notes on relative masses, the mole, formulae, reacting masses, concentration and titrations for International GCSE Chemistry.
OxfordAQA · IGCSE
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Practice questions
The Periodic Table: Practice Questions
Original exam-style practice questions with full worked answers on group trends, electron configuration and transition metals.
Cambridge · IGCSE, O Level
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The Periodic Table: Groups and Trends — Revision Notes
Condensed recall notes on Periodic Table arrangement, Group I, Group VII, transition elements and noble gases for Cambridge IGCSE 0620 and O Level 5070.
Cambridge · IGCSE, O Level
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Practice questions
Polymers: Practice Questions
Original exam-style practice questions with full worked answers on addition polymers, repeat units, disposal and condensation polymers.
Cambridge · IGCSE, O Level
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Polymers: Revision Notes
Condensed recall notes on addition and condensation polymerisation, nylon, PET, natural polymers and plastic pollution for Cambridge IGCSE 0620 and O Level 5070.
Cambridge · IGCSE, O Level
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Practice questions
IGCSE Chemistry: Rates of Reaction and Reversible Reactions — Practice Questions
Original exam-style practice questions with full worked answers on rate factors, collision theory, catalysts and equilibrium for IGCSE Chemistry.
Cambridge · IGCSE, O Level
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Rates of Reaction and Reversible Reactions: Revision Notes
Condensed recall notes on collision theory, factors affecting rate, equilibrium and Le Chatelier for Cambridge IGCSE 0620 and O Level 5070.
Cambridge · IGCSE, O Level
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Practice questions
Redox Reactions: Practice Questions
Original exam-style practice questions with full worked answers on oxidation numbers, half equations, oxidising agents and displacement.
Cambridge · IGCSE, O Level
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Redox Reactions: Revision Notes
Condensed recall notes on oxidation and reduction by oxygen, electrons and oxidation number for Cambridge IGCSE 0620 and O Level 5070, with the standard tests.
Cambridge · IGCSE, O Level
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Practice questions
States of Matter and Kinetic Particle Theory: Practice Questions
Original exam-style practice questions with full worked answers on the three states, changes of state, diffusion and heating curves.
Cambridge · IGCSE, O Level
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States of Matter and Kinetic Particle Theory: Revision Notes
Condensed recall notes on particle arrangement, changes of state and diffusion for Cambridge IGCSE 0620 and O Level 5070 — definitions, tables and exam traps.
Cambridge · IGCSE, O Level
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Study guides
Acids, Bases and Salts
Properties of acids and bases, strong vs weak acids, acidic/basic/amphoteric oxides, and preparing soluble and insoluble salts, for Cambridge IGCSE 0620 and O Level 5070.
Cambridge · IGCSE, O Level
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Alcohols and Carboxylic Acids
Manufacturing ethanol by fermentation and by hydration of ethene, and the reactions of carboxylic acids including ester formation, for Cambridge IGCSE 0620 and O Level 5070.
Cambridge · IGCSE, O Level
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Alloys and Extraction of Metals
Uses of metals, alloys and why they're harder than pure metals, and extracting iron and aluminium, for Cambridge IGCSE 0620 and O Level 5070.
Cambridge · IGCSE, O Level
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Chemistry of the Environment
Testing and treating water, NPK fertilisers, and the sources and effects of air pollutants including the greenhouse effect, for Cambridge IGCSE 0620 and O Level 5070.
Cambridge · IGCSE, O Level
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Electrolysis and Fuel Cells
Electrolysis of molten and aqueous compounds, predicting electrode products, electroplating, and hydrogen-oxygen fuel cells, for Cambridge IGCSE 0620 and O Level 5070.
Cambridge · IGCSE, O Level
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Exothermic and Endothermic Reactions
Exothermic and endothermic reactions, reaction pathway diagrams, activation energy, and calculating enthalpy change from bond energies, for Cambridge IGCSE 0620 and O Level 5070.
Cambridge · IGCSE, O Level
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Metal Properties and Reactivity
Physical and chemical properties of metals, the reactivity series, and corrosion and its prevention, for Cambridge IGCSE 0620 and O Level 5070.
Cambridge · IGCSE, O Level
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Amount of Substance: The Mole, Empirical Formulae and Gas Calculations
The mole and Avogadro constant, empirical and molecular formulae, hydrated salts, mole calculations from mass, gas volume and concentration, the ideal gas equation, and percentage yield and atom economy, for OCR A Level Chemistry A H432, Module 2.1.3.
OCR · A Level
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Atomic Structure: Sub-Atomic Particles and the Development of the Atomic Model
Sub-atomic particles, the changing atomic model, atomic scale, and calculating protons, neutrons and electrons from atomic number, mass number and ion charge, for OCR GCSE (9-1) Chemistry A (Gateway Science) J248.
OCR · GCSE
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Organic Chemistry: Formulae and Naming
Displayed and general formulae, homologous series, functional groups, structural isomers, and naming organic compounds, for Cambridge IGCSE 0620 and O Level 5070.
Cambridge · IGCSE, O Level
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Chemical Equilibria: Le Chatelier's Principle and the Equilibrium Constant Kc
Dynamic equilibrium, Le Chatelier's principle, and writing and using the equilibrium constant Kc, for OxfordAQA International AS and A-level Chemistry 9620, assessed in Unit 2.
OxfordAQA · AS Level
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Quantitative Chemistry: Conservation of Mass, the Mole and Molar Calculations
Conservation of mass in balanced equations, the mole concept, reacting-mass calculations, molar concentrations of solutions, and amount of substance in relation to gas volumes, for OxfordAQA International GCSE Chemistry 9202.
OxfordAQA · IGCSE
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Petroleum, Alkanes and Alkenes
Fractional distillation of petroleum, alkane substitution reactions, and alkene addition reactions and cracking, for Cambridge IGCSE 0620 and O Level 5070.
Cambridge · IGCSE, O Level
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Polymers
Addition and condensation polymerisation, nylon and PET, proteins as natural polyamides, and the environmental impact of plastics, for Cambridge IGCSE 0620 and O Level 5070.
Cambridge · IGCSE, O Level
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Acids, Bases, Buffers and Partition Coefficients
Calculating pH, Ka, pKa and Ksp, how buffer solutions work, and partition coefficients, for Cambridge International AS & A Level Chemistry 9701.
Cambridge · A Level
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Amides and Amino Acids
Producing and hydrolysing amides, why amides are weaker bases than amines, and amino acid acid-base properties, zwitterions and electrophoresis, for Cambridge International AS & A Level Chemistry 9701.
Cambridge · A Level
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Amines: Aliphatic and Aromatic, Basicity and Azo Dyes
Producing primary and secondary amines, comparing the basicity of ammonia, ethylamine and phenylamine, phenylamine's preparation, and azo dye coupling, for Cambridge International AS & A Level Chemistry 9701.
Cambridge · A Level
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Arenes and Halogenoarenes: Electrophilic Substitution and Reactivity
The reactions and electrophilic substitution mechanism of benzene, directing effects of substituents, and the reactivity of halogenoarenes versus halogenoalkanes, for Cambridge International AS & A Level Chemistry 9701.
Cambridge · A Level
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Carboxylic Acids and Acyl Chlorides
Producing benzoic acid, relative acidity of carboxylic acids and phenols, and the reactions and addition-elimination mechanism of acyl chlorides, for Cambridge International AS & A Level Chemistry 9701.
Cambridge · A Level
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Chemical Energetics: Lattice Energy, Entropy and Gibbs Free Energy
Born-Haber cycles, enthalpies of solution and hydration, entropy change and Gibbs free energy, for Cambridge International AS & A Level Chemistry 9701.
Cambridge · A Level
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Chromatography: Thin-Layer and Gas/Liquid Chromatography
Stationary and mobile phases, Rf values, retention times, and interpreting TLC and gas/liquid chromatograms, for Cambridge International AS & A Level Chemistry 9701.
Cambridge · A Level
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