Chemistry Theory (Core)
197 questions, 197 sorted into topics. Paper 3, written questions, Core tier.
Topics
States of matter
Solids, liquids and gases · Diffusion
Atoms, elements and compounds
Elements, compounds and mixtures · Atomic structure and the Periodic Table · Isotopes · Ions and ionic bonds · Simple molecules and covalent bonds · Giant covalent structures · Metallic bonding
Stoichiometry
Formulae · Relative masses of atoms and molecules · The mole and the Avogadro constant
Electrochemistry
Electrolysis · Hydrogen–oxygen fuel cells
Chemical energetics
Exothermic and endothermic reactions
Chemical reactions
Physical and chemical changes · Rate of reaction · Reversible reactions and equilibrium · Redox
Acids, bases and salts
The characteristic properties of acids and bases · Oxides · Preparation of salts
The Periodic Table
Arrangement of elements · Group I properties · Group VII properties · Transition elements · Noble gases
Metals
Properties of metals · Uses of metals · Alloys and their properties · Reactivity series · Corrosion of metals · Extraction of metals
Chemistry of the environment
Water · Fertilisers · Air quality and climate
Organic chemistry
Formulae, functional groups and terminology · Naming organic compounds · Fuels · Alkanes · Alkenes · Alcohols · Carboxylic acids · Polymers
Experimental techniques and chemical analysis
Experimental design · Acid–base titrations · Chromatography · Separation and purification · Identification of ions and gases