OCR Gateway GCSE Chemistry
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

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