Chemistry · IGCSE · Edexcel · Pearson Edexcel International GCSE (9–1) Chemistry (Modular) — 4XCH1 · Specification point · 5.12 · Principles of chemistry: Part 2 · Covalent bonding
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5.12 explain why the melting and boiling points of substances with simple molecular structures increase, in general, with increasing relative molecular mass |