Chemistry revision notes

WAEC and JAMB · SS2 and SS3 · 5 topics

Every topic below is written for the WAEC and JAMB syllabus: what you need to know, the key terms, a worked example with the steps shown, and the mistake that costs candidates the mark.

• Atomic structure and bonding The foundation of the whole subject. Almost every later topic — periodicity, bonding, electrolysis — is an…
• The mole and stoichiometry The single most examined calculation in the paper, and the one most candidates lose marks on. Everything…
• Acids, bases and salts Practical chemistry in written form. Expect a titration calculation and at least one question on preparing a…
• Periodic table and periodicity A topic about trends rather than facts. If you can explain WHY a trend exists, you can answer any version of…
• Organic chemistry Pattern recognition. Learn the homologous series, their general formulae and their characteristic reactions…