OCR GCSE Chemistry A (Gateway)
Exam Questions

The Particle Model, Limitations of the Particle Model

Atomic Models Through Time, Atomic Structure, Calculating the Particles

Pure & Impure, Relative Masses, Empirical Formula, Alloys, Separation Techniques, Chromatography

Metals & Non-Metals, Electronic Structure, Ionic Bonding, Covalent Bonding, Giant Covalent Structures, Polymers, Metals, Atomic Structure & the Periodic Table

Carbon, Changes of State, Bulk Properties, Nanoparticles

Chemical Symbols & Formulae, Deducing Formulae Using Common Ions, Balancing Chemical Equations, Writing Balanced Ionic Equations, The Avogadro Constant, Conservation of Mass, Using Moles to Balance Equations, Calculating Masses from Balanced Equations

Exothermic & Endothermic Reactions, Calculating Energy Changes

Oxidation & Reduction, OxidatIon & Reduction in Terms of Electrons, Acids & Alkalis, Neutralisation, Strong & Weak Acids, Effect of Hydrogen Ion Concentration on pH

Electrolysis, Electrolysis of Aqueous Solutions, Reactions at Electrodes, Half Equations

Group 1, Group 7, Group 0, Transition Metals, The Reactivity Series

Testing for Common Gases, Testing for Aqueous Cations, Testing for Aqueous Anions, Flame Tests, Instrumental Analysis

Concentration in g/dm3, Concentration in mol/dm3, Titrations, Titration Calculations, Gas Volume Calculations, Yields, Atom Economy, Choosing a Reaction Pathway

Measuring Rates, Rate Graphs, Change Rates, Catalysts & Enzymes

Equilibrium, Le Chatelier's Principle

Extracting Metals, Biological Extraction Methods, The Haber Process, Making Fertilisers, Explaining the Haber Process, The Contact Process, Life Cycle Assessment, Recycling Materials, Properties & Uses of Alloys, Corrosion of Iron, Properties of Materials

Alkanes, Alkenes, Addition Polymers, Condensation Polymers, DNA, Alcohols, Carboxylic Acids, Crude Oil & Fractional Distillation, Cracking, Cells

Origins of the Atmosphere, The Greenhouse Effect, Climate Change, Atmospheric Pollutants, Potable Water

Reactivity Trends, Electrolysis, Separation Techniques, Distillation, Identification of Species, Titration, Production of Salts, Measuring Rates of Reaction