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What can you recall?
state / describe
Recall and explain
Give the word equation for the reversible reaction of copper(II) sulfate with its water, and state which direction needs heating.
state: give a concise answer. describe: give the features or what happens.
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Scope and sources
Cambridge IGCSE Chemistry 0620 · 2026–2028 v2 · Original learning materials.
Reversible reactions and equilibrium (6.3 Core 1 and 2; Supplement 3 to 11): the reversible sign, hydrated and anhydrous salts and the water tests, dynamic equilibrium in a closed system, how changing the conditions moves its position, and the Haber and Contact processes. Energy changes are in ENER01, collision theory and catalysts in RATE01, and fertilisers in FERT01.
Apparatus, amounts and times in the experiment are illustrative. Real practical work follows a teacher-approved safety method.
Official Cambridge syllabus