Structure of the Atom
Periodic Chemistry
Bonding
Stoichiometry and Chemical Reactions
States of Matter
The most common states of matter are solid, liquid and gaseous state. This is the different phases a matter can pass through. The study of the state of matter in WAEC chemistry covers topics like Brownian motion, diffusion, Charles’, Boyle’s, Dalton’s, Graham’s, Avogadro’s laws and the ideal gas equation.
Energy and Energy Changes
All chemical bonds are broken and form. Energy is required to break and form a chemical bond. The following topics are covered in WAEC Chemistry on change in energy like enthalpy, energy diagrams, forms of energy, energy content, transfer of energy, exothermic and endothermic processes, practical knowledge of the measurement of the heats of neutralization and many more.
Acids, Bases and Salts
Acid and base is one the popular topic in chemistry. Acid reacts with base to form salt and water. Salt is an ionic compound made from the neutralization reaction between an acid and a base. You should read and understand the following sub-topics; Arrhenius concept of acids and bases, effects of acids and bases on indicators, metals and trioxocarbonate (IV) salts, pH as a measure of acidity and alkalinity and many more.
Solubility of Substance
Solubility of a substance is another to form a homogeneous solution can depend on some factors. The solute is the substance that dissolves in another substance called a solvent. You should read these topics to get a clearer view and understanding about solubility. The lists are saturated and unsaturated solutions, Solubility curves and their uses, crystallization as a method of purification and more.
Rate of Reactions and Equilibrium Systems
Rate of a chemical reaction is the speed at which reactants are converted into products. Chemical reactions can be considered to have a fast or slow rate of reaction. The topics to cover include collision theory and activation energy theory, equilibrium, reversible reactions and more.
Other important topic in WAEC chemistry to have on your finger tips are listed below. Make sure you read them thoroughly and grasp every aspect of it.
Redox Reactions
Chemistry of Carbon Compounds
Non Metals and their Compounds
Metals and their Compounds
Chemistry, Industry and the Environment
Practical Skills
– Quantitative Analysis
– Qualitative Analysis
Apart from the chemistry topics to concentrate on, there are many recommended books you can read to help you understand the subject topics. I have made a short list of recommended chemistry textbooks.
If you do not have money to own a copy, you can always search for it in your school or local library.
Osei Yaw Ababio – Chemistry Textbook
Longman Publisher – Practical Chemistry for Senior Secondary Schools
Longman Publisher – Senior Secondary Chemistry Textbooks
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