Edexcel IGCSE Chemistry Chemistry Paper 2 June 2024 examiner report (4CH1/2CR)
Examiner report
- Q1 - 4 marks - Collision theory and activation energy, Ionic bonding and ionic compounds, Relative formula mass, The periodic table
- Q2 - 6 marks - Isotopes and relative atomic mass, Subatomic particles
- Q3 - 12 marks - Amounts of substance in equations, Conservation of mass and balanced equations, Factors affecting the rate of reaction, Making soluble salts, Metallic bonding, Oxidation and reduction in terms of electrons, Properties of metals and alloys
- Q4 - 8 marks - Conservation of mass and balanced equations, Percentage yield, Producing ethanol
- Q5 - 14 marks - Empirical formulae, Making soluble salts, Titrations
- Q6 - 11 marks - Electrolysis, Half equations at electrodes, Tests for gases, Volumes of gases
- Q7 - 15 marks - Bond energy calculations, Dynamic equilibrium, Esters, Producing ethanol, Reaction profiles, The effect of changing conditions on equilibrium
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