Edexcel GCSE Combined Science Paper 3: Chemistry 1 Foundation June 2025 examiner report (1SC0/1CF)
Examiner report
- Q1 - 6 marks - Conservation of mass and balanced equations, Tests for gases
- Q2 - 9 marks - Chromatography, Mixtures and separation techniques, The three states of matter
- Q3 - 9 marks - Conservation of mass and balanced equations, Metals and non-metals, Reactivity of metals, Relative formula mass, Tests for gases
- Q4 - 12 marks - Amounts of substance in equations, Concentration of solutions, Extraction of metals and reduction, Oxidation and reduction in terms of electrons, Relative formula mass
- Q5 - 13 marks - Electronic structure, Subatomic particles, The periodic table
- Q6 - 11 marks - Electrolysis, Making soluble salts, Metallic bonding
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