Edexcel IGCSE Chemistry Chemistry Paper 2 January 2023 examiner report (4CH1/2C)
Examiner report
- Q1 - 7 marks - Electronic structure, Ionic bonding and ionic compounds, Isotopes and relative atomic mass, Subatomic particles
- Q2 - 5 marks - Atoms, elements and compounds, Giant covalent structures, Properties of metals and alloys, The three states of matter
- Q3 - 8 marks - Making soluble salts, Solubility and solubility curves
- Q4 - 13 marks - Alkenes, Cracking and alkenes, Fractional distillation and petrochemicals
- Q5 - 11 marks - Electrolysis, Electrolysis of molten ionic compounds, Empirical formulae, Half equations at electrodes, Properties of ionic compounds, Properties of metals and alloys
- Q6 - 13 marks - Carboxylic acids, Catalysts, Dynamic equilibrium, Esters, Titrations
- Q7 - 13 marks - Bond energy calculations, Concentration of solutions, Covalent bonding, Volumes of gases
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