Edexcel GCSE Combined Science Paper 4: Chemistry 2 Foundation June 2025 examiner report (1SC0/2CF)
Examiner report
- Q1 - 7 marks - Group 7: the halogens, Tests for gases
- Q2 - 8 marks - Exothermic and endothermic reactions
- Q3 - 9 marks - Greenhouse gases and climate change, Group 0: the noble gases, The composition and evolution of the atmosphere
- Q4 - 11 marks - Group 1: the alkali metals, Ionic bonding and ionic compounds, Relative formula mass, The periodic table
- Q5 - 12 marks - Catalysts, Collision theory and activation energy, Concentration of solutions, Factors affecting the rate of reaction
- Q6 - 13 marks - Covalent bonding, Cracking and alkenes, Crude oil, hydrocarbons and alkanes, Empirical formulae, Fractional distillation and petrochemicals, Properties of hydrocarbons
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