Chemistry (Combined Science) · IGCSE · Edexcel · Pearson Edexcel International GCSE Science (Double Award) — Chemistry (Linear) — 4SD0 · Specification point · 1.49 · Principles of chemistry · Covalent bonding
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| Students should: |
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1.49 explain why substances with giant covalent structures are solids with high melting and boiling points |