Edexcel GCSE Combined Science Paper 3: Chemistry 1 Higher November 2020 examiner report (1SC0/1CH)
Examiner report
- Q1 - 9 marks - Concentration of solutions, Covalent bonding, Electrolysis, Electrolysis of aqueous solutions, Ionic bonding and ionic compounds
- Q2 - 9 marks - Covalent bonding, Making soluble salts, Reactions of acids, Relative formula mass, Tests for gases
- Q3 - 9 marks - Chromatography, Mixtures and separation techniques
- Q4 - 11 marks - Empirical formulae, Isotopes and relative atomic mass, Oxidation and reduction in terms of electrons
- Q5 - 11 marks - Electronic structure, Metallic bonding, Properties of ionic compounds, Properties of small molecules, Reactivity of metals, Subatomic particles
- Q6 - 11 marks - Reactions of acids, The pH scale and neutralisation
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