Independent final check
Explain without the key
Identify / Explain / Describe
Final check
Identify: name or select. Explain: give reasons and connect them to evidence. Describe: give the features or what happens.
Read this preparation record: a little solid Z dissolves completely in liquid propanone, making a uniform liquid. No other substance is present. Identify the solvent and solute, explaining each role. Describe everything included in the solution. No formulas or practical tests are needed.
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Scope and sources
Cambridge IGCSE Chemistry 0620 · 2026–2028 v2 · Original learning materials.
Solvent, solute, solution, residue and filtrate; selective dissolution, filtration and bounded method choice. The experiment includes magnetic collection and salt recovery. Saturation, full crystallisation, distillation and chromatography need later lessons.
Apparatus, amounts and times in the experiment are illustrative. Real practical work follows a teacher-approved safety method.
Official Cambridge syllabus