Curriculum
OCR Gateway GCSE Combined Science A J250 — Chemistry
1. Particles
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Unit 1 overview: Particles
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1.1.1 The Particle Model
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1.1.1 The Particle Model - MCQ practice (10 questions)
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1.1.2 Limitations of the Particle Model
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1.1.2 Limitations of the Particle Model - MCQ practice (10 questions)
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1.2.1 Atomic Models Through Time
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1.2.2 Atomic Structure
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1.2.2 Atomic Structure - MCQ practice (13 questions)
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1.2.3 Calculating the Particles
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1.2.3 Calculating the Particles - MCQ practice (12 questions)
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2. Elements, compounds and mixtures
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Unit 2 overview: Elements, compounds and mixtures
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2.1.1 Pure and Impure
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2.1.1 Pure and Impure - MCQ practice (4 questions)
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2.1.2 Relative Masses
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2.1.2 Relative Masses - MCQ practice (9 questions)
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2.1.3 Empirical Formula
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2.1.3 Empirical Formula - MCQ practice (7 questions)
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2.1.4 Alloys
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2.1.4 Alloys - MCQ practice (24 questions)
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2.1.5 Separation Techniques
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2.1.5 Separation Techniques - MCQ practice (8 questions)
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2.1.6 Chromatography
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2.1.6 Chromatography - MCQ practice (50 questions)
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2.1.6 Chromatography - MCQ practice part 2 (5 questions)
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2.2.1 Metals and Non-Metals
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2.2.1 Metals and Non-Metals - MCQ practice (12 questions)
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2.2.2 Electronic Structure
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2.2.2 Electronic Structure - MCQ practice (1 questions)
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2.2.3 Ionic Bonding
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2.2.3 Ionic Bonding - MCQ practice (25 questions)
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2.2.4 Covalent Bonding
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2.2.4 Covalent Bonding - MCQ practice (34 questions)
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2.2.5 Giant Covalent Structures
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2.2.5 Giant Covalent Structures - MCQ practice (13 questions)
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2.2.6 Polymers
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2.2.6 Polymers - MCQ practice (21 questions)
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2.2.7 Metals
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2.2.7 Metals - MCQ practice (27 questions)
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2.2.8 Atomic Structure and the Periodic Table
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2.2.8 Atomic Structure and the Periodic Table - MCQ practice (14 questions)
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2.3.1 Carbon
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2.3.1 Carbon - MCQ practice (12 questions)
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2.3.2 Changes of State
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2.3.2 Changes of State - MCQ practice (10 questions)
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2.3.3 Bulk Properties
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3. Chemical Reactions
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Unit 3 overview: Chemical Reactions
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3.1.1 Chemical Symbols and Formulae
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3.1.1 Chemical Symbols and Formulae - MCQ practice (6 questions)
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3.1.2 Deducing Formulae Using Common Ions
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3.1.2 Deducing Formulae Using Common Ions - MCQ practice (6 questions)
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3.1.3 Balancing Chemical Equations
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3.1.3 Balancing Chemical Equations - MCQ practice (9 questions)
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3.1.4 Writing Balanced Ionic Equations
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3.1.4 Writing Balanced Ionic Equations - MCQ practice (8 questions)
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3.1.5 The Avogadro Constant
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3.1.5 The Avogadro Constant - MCQ practice (13 questions)
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3.1.6 Conservation of Mass
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3.1.6 Conservation of Mass - MCQ practice (12 questions)
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3.1.7 Using Moles to Balance Equations
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3.1.7 Using Moles to Balance Equations - MCQ practice (8 questions)
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3.1.8 Calculating Masses from Balanced Equations
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3.1.8 Calculating Masses from Balanced Equations - MCQ practice (11 questions)
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3.2.1 Exothermic and Endothermic Reactions
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3.2.1 Exothermic and Endothermic Reactions - MCQ practice (24 questions)
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3.2.2 Calculating Energy Changes
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3.2.2 Calculating Energy Changes - MCQ practice (46 questions)
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3.3.1 Oxidation and Reduction
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3.3.1 Oxidation and Reduction - MCQ practice (19 questions)
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3.3.2 Oxidation and Reduction in Terms of Electrons
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3.3.2 Oxidation and Reduction in Terms of Electrons - MCQ practice (32 questions)
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3.3.3 Acids and Alkalis
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3.3.3 Acids and Alkalis - MCQ practice (9 questions)
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3.3.4 Neutralisation
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3.3.4 Neutralisation - MCQ practice (8 questions)
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3.3.5 Effect of Hydrogen Ion Concentration on pH
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3.3.5 Effect of Hydrogen Ion Concentration on pH - MCQ practice (30 questions)
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3.4.1 Electrolysis
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3.4.1 Electrolysis - MCQ practice (6 questions)
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3.4.2 Electrolysis of Aqueous Solutions
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3.4.2 Electrolysis of Aqueous Solutions - MCQ practice (34 questions)
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3.4.3 Reactions at Electrodes
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3.4.3 Reactions at Electrodes - MCQ practice (11 questions)
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3.4.3 Reactions at Electrodes - MCQ practice (6 questions)
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3.4.4 Half Equations
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3.4.4 Half Equations - MCQ practice (5 questions)
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4. Predicting and Identifying Reactions and Products
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Unit 4 overview: Predicting and Identifying Reactions and Products
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4.1.1 Group 1
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4.1.1 Group 1 - MCQ practice (19 questions)
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4.1.2 Group 7
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4.1.2 Group 7 - MCQ practice (11 questions)
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4.1.3 Group 0
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4.1.3 Group 0 - MCQ practice (33 questions)
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4.1.4 The Reactivity Series
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4.1.4 The Reactivity Series - MCQ practice (21 questions)
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4.1.5 Predicting Reactivity
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4.1.5 Predicting Reactivity - MCQ practice (20 questions)
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4.2.1 Testing for Common Gases
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4.2.1 Testing for Common Gases - MCQ practice (2 questions)
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5. Monitoring and Controlling Chemical Reactions
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Unit 5 overview: Monitoring and Controlling Chemical Reactions
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5.1.1 Measuring Rates
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5.1.1 Measuring Rates - MCQ practice (3 questions)
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5.1.2 Rate Graphs
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5.1.2 Rate Graphs - MCQ practice (7 questions)
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5.1.3 Change Rates
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5.1.3 Change Rates - MCQ practice (5 questions)
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5.1.4 Catalysts and Enzymes
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5.1.4 Catalysts and Enzymes - MCQ practice (4 questions)
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5.2.1 Equilibrium
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5.2.2 Le Chatelier's Principle
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6. Global Challenges
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Unit 6 overview: Global Challenges
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6.1.1 Extracting Metals
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6.1.1 Extracting Metals - MCQ practice (4 questions)
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6.1.2 Biological Extraction Methods
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6.1.2 Biological Extraction Methods - MCQ practice (3 questions)
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6.1.3 Life Cycle Assessment
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6.1.4 Recycling Materials
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6.2.1 Crude Oil and Fractional Distillation
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6.2.1 Crude Oil and Fractional Distillation - MCQ practice (32 questions)
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6.2.2 Cracking
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6.2.2 Cracking - MCQ practice (2 questions)
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6.3.1 Origins of the Atmosphere
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6.3.1 Origins of the Atmosphere - MCQ practice (19 questions)
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6.3.2 The Greenhouse Effect
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6.3.2 The Greenhouse Effect - MCQ practice (5 questions)
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6.3.3 Climate Change
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6.3.3 Climate Change - MCQ practice (5 questions)
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6.3.4 Atmospheric Pollutants
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6.3.4 Atmospheric Pollutants - MCQ practice (11 questions)
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6.3.5 Potable Water
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6.3.5 Potable Water - MCQ practice (23 questions)
23 questionsPreview
7. Practical Skills
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Unit 7 overview: Practical Skills
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7.1.1 Electrolysis
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7.1.1 Electrolysis - MCQ practice (5 questions)
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7.1.2 Separation Techniques
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7.1.2 Separation Techniques - MCQ practice (8 questions)
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7.1.3 Distillation
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7.1.3 Distillation - MCQ practice (8 questions)
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7.1.4 Production of Salts
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7.1.4 Production of Salts - MCQ practice (26 questions)
26 questionsPreview
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7.1.5 Measuring Rates of Reaction
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7.1.5 Measuring Rates of Reaction - MCQ practice (5 questions)
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7.1.5 Measuring Rates of Reaction - MCQ practice (2 questions)
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Quiz
7.1.4 Production of Salts – MCQ practice (26 questions)
Multiple-choice questions on this lesson only. Your score appears when you finish.
- Questions count: 26
- Passing grade: B
Multiple-choice questions on this lesson only. Your score appears when you finish.
- Questions count: 26
- Passing grade: B