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Combined Science A (Gateway) · OCR J250 · Chemistry Paper 9 · Higher · November 2020

OCR GCSE Combined Science A (Gateway) Chemistry Paper 9 Higher November 2020 mark scheme J250/09

1h 10m 60 marks

Practise the past exam questions by topic

Oxidation & reduction in terms of electrons21 Qs Subatomic particles26 Qs Relative formula mass17 Qs Chemical bonds26 Qs +16 more
17 questions
  1. Q1 - 1 mark - Oxidation and reduction in terms of electrons
  2. Q2 - 1 mark - Subatomic particles
  3. Q3 - 1 mark - Relative formula mass
  4. Q4 - 1 mark - Chemical bonds
  5. Q5 - 1 mark - The development of the model of the atom
  6. Q6 - 1 mark - The three states of matter
  7. Q7 - 1 mark - Moles and amount of substance
  8. Q8 - 1 mark - The pH scale and neutralisation
  9. Q9 - 1 mark - Conservation of mass and balanced equations
  10. Q10 - 1 mark - Concentration of solutions, Moles and amount of substance
  11. Q11 - 6 marks - Formulations, The three states of matter
  12. Q12 - 6 marks - Conservation of mass and balanced equations, Ionic bonding and ionic compounds, Relative formula mass
  13. Q13 - 4 marks - Reaction profiles
  14. Q14 - 10 marks - Limiting reactants, Mixtures and separation techniques, Moles and amount of substance, Reactions of acids, Relative formula mass
  15. Q15 - 6 marks - Diamond, graphite, graphene and fullerenes, The three states of matter
  16. Q16 - 8 marks - Conservation of mass and balanced equations, Reactions of acids, Strong and weak acids, The pH scale and neutralisation, The three states of matter
  17. Q17 - 10 marks - Conservation of mass and balanced equations, Electrolysis, Electrolysis of aqueous solutions, Oxidation and reduction in terms of electrons