Chemistry past papers › 9701/21/O/N/21

9701/21/O/N/21 Question 1

Chemistry October/November 2021 Paper 21 · 21 marks · Structure and properties, Dot-and-cross diagrams, Shapes of molecules, Intermolecular forces, Enthalpy change definitions, Hess’s law, Brønsted–Lowry theory of acids and bases, Acids and bases, Oxidation and reduction, Gas volumes, Nitrogen oxides and pollution, Formulas

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Question 2

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