KCSE Chemistry Revision

Introduction to chemistry

Laboratory apparatus and safety

States of matter

Particle theory of matter

Mixtures and separation techniques

Elements, compounds and mixtures

Metals and non-metals

Acids and bases

Indicators and pH scale

Salts and neutralization

Atomic structure

Electronic configuration

Periodic table structure

Periodic trends

Ionic bonding

Covalent bonding

Metallic bonding

Chemical equations

Balancing chemical equations

The mole concept

Stoichiometric calculations

Gas laws

Water treatment and purification

Hydrogen preparation and properties

Air composition

Oxygen preparation and properties

Combustion and rusting

Preparation of salts

Qualitative analysis

Acid-base titration

Hydrocarbons

Alkanes

Alkenes

Alcohols

Carboxylic acids

Nitrogen and its compounds

Sulphur and its compounds

Chlorine and its compounds

Energy changes in reactions

Rates of reaction

Chemical equilibrium

Electrolysis

Voltaic cells

Reactivity series

Extraction of metals

Corrosion and prevention

Radioactivity

Chemical families and group properties

Properties, reactions and uses of alkali metals (Group I), alkaline earth metals (Group II), halogens (Group VII) and noble gases

Alkynes

Nomenclature, structural formulae, preparation and reactions of alkynes; comparison with alkanes and alkenes

Detergents and polymers

Soapy and soapless detergents, cleansing action; natural and synthetic polymers; addition and condensation polymerisation

Redox reactions

Electron transfer, oxidation numbers, displacement reactions as redox, identifying oxidising and reducing agents