Rates of Reaction
Learn the factors that affect the speed of chemical reactions and the role of catalysts.
Subject
<p>The study of matter, its properties, structure and the changes it undergoes. Covers atomic structure, bonding, acids and bases, the mole concept, electrolysis and organic chemistry.</p>
Learn the factors that affect the speed of chemical reactions and the role of catalysts.
Understand how electricity decomposes ionic compounds during electrolysis, and the products at the anode and cathode.
Learn how elements are arranged in the periodic table, and the trends in properties across periods and down groups.
An introduction to organic chemistry — alkanes, alkenes, alkynes, functional groups and the reactions of hydrocarbons.
Master the mole — the chemist’s counting unit — and learn to calculate molar mass, moles and reacting masses.
Learn the properties of acids and bases, the pH scale, indicators, and how salts are prepared and named.
Understand how atoms combine through ionic and covalent bonds to form compounds with stable electronic configurations.
Learn about protons, neutrons and electrons, atomic and mass numbers, isotopes and electronic configuration.
WAEC-standard Chemistry questions for 2023 with full answers.
WAEC-standard Chemistry questions for 2024 with full answers.
A full set of WAEC-standard Chemistry questions for 2025 with answers and explanations.
WAEC-style objective and theory questions on atomic structure, bonding, acids, bases and the mole — with answers.