Contents
Part 2 of 2
Balancing equations
construct
Try it yourself
Hydrogen burns in chlorine to make hydrogen chloride. Balance the equation by typing the numbers in front.
construct: use the given information.
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Scope and sources
Cambridge IGCSE Chemistry 0620 · 2026–2028 v2 · Original learning materials.
Formulae and equations (3.1 Core 1–4, Supplement 5–8): the formulae of the elements and compounds named in the subject content, the molecular formula, a formula from a model or diagram, word and symbol equations with state symbols and, in the Supplement, the empirical formula, ionic formulae from a model or from the charges, ionic equations and symbol equations from given information. Ions and their charges are in Ions and ionic bonding, masses and moles in later modules of topic 3, and the reactions themselves in later modules.
Apparatus, amounts and times in the experiment are illustrative. Real practical work follows a teacher-approved safety method.
Official Cambridge syllabus