Edexcel GCSE Combined Science Paper 4: Chemistry 2 Higher June 2022 examiner report (1SC0/2CH)
Examiner report
- Q1 - 9 marks - Collision theory and activation energy, Factors affecting the rate of reaction, Rate of reaction
- Q2 - 9 marks - Amounts of substance in equations, Group 0: the noble gases, Group 1: the alkali metals, Moles and amount of substance, Tests for gases
- Q3 - 9 marks - Atmospheric pollutants, Crude oil, hydrocarbons and alkanes, Properties of hydrocarbons
- Q4 - 10 marks - Group 7: the halogens, Oxidation and reduction in terms of electrons, The periodic table
- Q5 - 12 marks - Amounts of substance in equations, Empirical formulae, Greenhouse gases and climate change, The composition and evolution of the atmosphere
- Q6 - 11 marks - Bond energy calculations, Catalysts, Reaction profiles
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