Year 11 completes WJEC GCSE Chemistry in Wales. Remaining content covers rates of reaction, energy changes, organic chemistry, the Earth's atmosphere and resources, and chemical analysis.

The year is dominated by consolidating calculations and exam practice. Moles, concentration, percentage yield and atom economy recur throughout the papers, and specified-practical questions expect method and error analysis, not just results.

Curriculum Breakdown

Important Topics

Rates of Reaction — Collision theory, factors affecting rate, catalysts and rate graphs.
Energy Changes — Exothermic and endothermic reactions, bond energies and reaction profiles.
Organic Chemistry — Crude oil, alkanes, alkenes, alcohols, carboxylic acids and polymers.
Earth's Atmosphere & Resources — Atmospheric change, pollution, water treatment and sustainability.
Chemical Analysis — Tests for ions and gases, chromatography and instrumental methods.
Calculations & Exam Technique — Moles, concentration, yield, atom economy and structured working.

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