OCR GCSE Combined Science A (Gateway) Chemistry Paper 9 Higher June 2023 mark scheme J250/09
Practise the past exam questions by topic
Pure substances9 Qs
Relative formula mass17 Qs
Tests for gases10 Qs
Reactions of acids22 Qs
Three states of matter46 Qs
Mixtures & separation techniques12 Qs
Development of the model of the atom5 Qs
Conservation of mass & balanced equations52 Qs
Moles & amount of substance13 Qs
Bonding, structure & the properties of matter12 Qs
Chemical bonds26 Qs
Electronic structure18 Qs
Ionic bonding & ionic compounds10 Qs
Subatomic particles26 Qs
Chromatography11 Qs
Diamond, graphite, graphene & fullerenes8 Qs
Electrolysis10 Qs
Concentration of solutions5 Qs
Strong & weak acids5 Qs
PH scale & neutralisation16 Qs
Bond energy calculations5 Qs
Reaction profiles10 Qs
+18 more
16 questions
- Q1 - 1 mark - Pure substances
- Q2 - 1 mark - Relative formula mass
- Q3 - 1 mark - Tests for gases
- Q4 - 1 mark - Reactions of acids
- Q5 - 1 mark - The three states of matter
- Q6 - 1 mark - Mixtures and separation techniques
- Q7 - 1 mark - The development of the model of the atom
- Q8 - 1 mark - Conservation of mass and balanced equations
- Q9 - 1 mark - Moles and amount of substance
- Q10 - 1 mark - The three states of matter
- Q11 - 12 marks - Bonding, structure and the properties of matter, Chemical bonds, Electronic structure, Ionic bonding and ionic compounds, Subatomic particles
- Q12 - 7 marks - Chromatography
- Q13 - 7 marks - Chemical bonds, Diamond, graphite, graphene and fullerenes
- Q14 - 6 marks - Electrolysis
- Q15 - 12 marks - Concentration of solutions, Moles and amount of substance, Reactions of acids, Strong and weak acids, The pH scale and neutralisation
- Q16 - 6 marks - Bond energy calculations, Reaction profiles
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