BRAINCAKE

Edexcel AS-level Chemistry

Edexcel Chemistry (8CH0)21 topics323 lessons

Free Edexcel AS-level Chemistry revision for Edexcel Chemistry (8CH0): 21 topics and 323 short lessons, each with R.E.C.I.P.E. recall steps and a quiz. The topics follow the Edexcel specification.

Start revising free

1. Atomic Structure

19 lessons

  1. Discovery of Atomic Structure
  2. Structure of the Atom
  3. Atomic Number and Mass Number
  4. Isotopes
  5. Relative Isotopic Mass
  6. Relative Atomic Mass
  7. Mass Spectrometer
  8. Relative Atomic Mass from a Mass Spectrometer
  9. Relative Molecular Mass from a Mass Spectrometer
  10. Quantum Shells
  11. Orbitals
  12. Electronic Configurations
  13. Predicting Electronic Configuration
  14. Energy Levels and Emission Spectra
  15. First Ionisation Energy
  16. Successive Ionisation Energies
  17. The Energy of an Electron
  18. Ionisation Energy across a Period
  19. Ionisation Energy Down a Group

2. The Periodic Table

6 lessons

  1. The Periodic Table
  2. Periodicity
  3. Atomic Radii
  4. Melting and Boiling Temperatures
  5. First Ionisation Energies
  6. Anomalies

3. Bonding

15 lessons

  1. Metallic Bonding
  2. Physical Properties of Metals
  3. Ionic Bonding
  4. The Strength of Ionic Bonds
  5. Trends in Ionic Radii
  6. Physical Properties of Ionic Compounds
  7. Formation of Ions
  8. Evidence for the Existence of Ions
  9. Covalent Bonds
  10. π-bonds
  11. Bond Length and Bond Strength
  12. Electronegativity
  13. Distribution of Electron Density
  14. Polar Covalent Bonds
  15. Continuum of Bonding Type

4. Discrete Molecules

25 lessons

  1. Simple Molecules
  2. Expanded Octet Rule
  3. Displayed Formulae
  4. Dative Covalent Bonds
  5. Electron Pair Repulsion Theory
  6. The Shapes of Molecules
  7. Molecules with Multiple Bonds
  8. Bond Angles
  9. Shape and Polarity
  10. Polyatomic Ions
  11. London Forces
  12. Permanent Dipoles
  13. Hydrogen Bonds
  14. Intermolecular Forces and Boiling Points
  15. Anomalous Properties of Water
  16. Solvents
  17. Dissolving Ionic Solids
  18. Metallic Lattices
  19. Giant Ionic Lattices
  20. Giant Covalent Lattices
  21. Diamond
  22. Graphite
  23. Graphene
  24. Molecular Lattices
  25. Structure and Bonding Question

5. Oxidation and Reduction

14 lessons

  1. Oxidation and Reduction
  2. Oxidising and Reducing Agents
  3. Disproportionation
  4. Oxidation Number
  5. Systematic Names
  6. Example Question 1
  7. Example Question 2
  8. Ionic Equations
  9. Exam-style Question 1
  10. Exam-style Question 2
  11. Exam-style Question 3
  12. Exam-style Question 4
  13. Exam-style Question 5
  14. Exam-style Question 6

6. Group 2

16 lessons

  1. Group 2 Elements
  2. Trend In Ionisation Energy
  3. Trend in Reactivity
  4. Reactions with Oxygen
  5. Reactions with Chlorine
  6. Reactions with Water
  7. Magnesium and Steam
  8. Reactions of Oxides with Water
  9. Trends in Solubility of the Hydroxides
  10. Uses of the Hydroxides
  11. Reactions of the Oxides and Hydroxides with Acids
  12. Trend in Solubility of Sulfates
  13. Thermal Stability of Nitrates
  14. Thermal Stability of Carbonates
  15. Flame Tests
  16. Test for Ammonium Ions

7. Group 7

14 lessons

  1. Group 7 Elements
  2. Trends in Melting and Boiling Temperature
  3. Trend in Electronegativity
  4. Trend in Reactivity
  5. Reactions with Group 1 and 2 Metals
  6. Halogen-Halide Displacement Reactions
  7. Halogen Disproportionation Reactions
  8. Reaction of Halides with Sulfuric Acid
  9. Sodium Chloride
  10. Sodium Bromide
  11. Sodium Iodide
  12. Test for Halide Ions
  13. Hydrogen Halides as Acids
  14. Reaction with Ammonia

8. Amount of Substance and Calculations

39 lessons

  1. Counting Atoms - The Mole
  2. Calculations
  3. Chemical Formulae
  4. Balanced Equations
  5. Ionic Equations
  6. Ionic Equations - Question1
  7. Ionic Equations - Question 2
  8. Ionic Equations - Question3
  9. Ionic Equations - Question 4
  10. Calculations of Reacting Masses
  11. Working out Equations from Reacting Masses
  12. Empirical Formula
  13. Percentage Composition by Mass
  14. Combustion Analysis
  15. Molecular Formula
  16. Example Question - 1
  17. Example Question - 2
  18. Example Question - 3
  19. Example Question - 4
  20. Avogadro's Law
  21. Gas Volume Calculation - 1
  22. Gas Volume Calculation - 2
  23. Molar Volume
  24. Molar Volume Calculation - 1
  25. Molar Volume Calculation - 2
  26. Mass Concentration
  27. Molar Concentration
  28. Calculate Concentration - 1
  29. Calculate Concentration - 2
  30. Standard Solutions
  31. Making a Standard Solution
  32. Titrations
  33. The Titration Method
  34. Indicators
  35. Concordant Titres and Mean Titres
  36. Calculating Concentration
  37. Titration Calculations - 1
  38. Titration Calculations - 2
  39. Titration Calculations - 3

9. Errors and Uncertainties

14 lessons

  1. Errors vs Mistakes
  2. Accuracy and Precision
  3. Random Errors and Systematic Errors
  4. Uncertainty
  5. Percentage Uncertainty
  6. Adding Uncertainties
  7. Adding Percentage Uncertainties
  8. Minimising Errors and Uncertainties
  9. Percentage Yield
  10. Atom Economy
  11. Example Calculation - 1
  12. Example Calculation - 2
  13. Example Calculation - 3
  14. Example Calculation - 4

10. Types of Reaction

8 lessons

  1. Metal Displacement Reactions
  2. Metal Displacement Reactions in the Solid State
  3. Halogen Displacement Reactions
  4. Precipitation Reactions
  5. Reactions of Acids with Metals
  6. Reactions of Acids with Insoluble Bases
  7. Reactions of Acids with alkalis
  8. Reactions of Acids with Carbonates and Hydrogen Carbonates

11. Introduction to Organic Chemistry

13 lessons

  1. Hydrocarbons
  2. Saturated and Unsaturated Hydrocarbons
  3. Cyclic Compounds
  4. Types of Formulae
  5. Functional Groups
  6. Homologous Series
  7. Naming Organic Compounds
  8. Practice Question - 1
  9. Practice Question - 2
  10. Practice Question - 3
  11. Structural Isomerism
  12. Stereoisomerism
  13. Geometric Isomers E-Z Notation

12. Alkanes

14 lessons

  1. Alkanes
  2. Alkanes from Crude Oil
  3. Cracking
  4. Reforming
  5. Combustion of Alkanes
  6. Oxides of Sulfur
  7. Oxides of Nitrogen
  8. Catalytic Converters
  9. Alternative Fuels
  10. Biofuels
  11. Biofuels vs Fossil Fuels
  12. Bond Breaking
  13. Free-Radical Substitution of Alkanes
  14. Further Substitution

13. Alkenes

19 lessons

  1. Alkenes
  2. Bonding in Alkenes
  3. Addition Reactions
  4. Hydrogenation
  5. Halogenation
  6. Hydration
  7. Addition of Hydrogen Halides
  8. Electrophile
  9. Nucleophile
  10. Electrophilic Addition Mechanism
  11. Electrophilic Addition of Hydrogen Halides
  12. Unsymmetrical Molecules
  13. Addition Polymerisation
  14. Identifying the Monomer
  15. Identifying the Repeating Group
  16. Polymer Waste
  17. Recycling
  18. Incineration
  19. Biodegradable Polymers

14. Halogenoalkanes

11 lessons

  1. Halogenoalkanes
  2. Naming Halogenoalkanes
  3. Classifying Halogenoalkanes
  4. Reactivity of Halogenoalkanes
  5. Hydrolysis Reactions
  6. Comparing the Rates of Hydrolysis
  7. Nucleophilic Substitution
  8. Reaction with Alkali
  9. Reaction with Aqueous Alkali
  10. Reaction with Ammonia
  11. Reaction with KCN

15. Alcohols

16 lessons

  1. Classifying Alcohols
  2. Reactions of Alcohols
  3. Conversion to Halogenoalkanes
  4. Dehydration
  5. Oxidation Reactions of Alcohols
  6. Purification by Simple Distillation
  7. Fractional Distillation
  8. Solvent Extraction
  9. Drying
  10. Test for Purity
  11. Exam Style Question - 1
  12. Exam Style Question - 2
  13. Exam Style Question - 3
  14. Exam Style Question - 4
  15. Exam Style Question - 5
  16. Exam Style Question - 6

16. Mass Spectrometry

9 lessons

  1. Mass Spectrometry
  2. The Molecular Ion Peak
  3. Other Peaks
  4. Fragmentation
  5. Mass Spectrum Example 1
  6. Mass Spectrum Example 2
  7. Mass Spectrum Example 3
  8. Mass Spectrum Example 4
  9. Mass Spectrum Example 5

17. Infra-red Spectroscopy

10 lessons

  1. Infra Red Spectroscopy
  2. Characteristic Absorptions
  3. Infra Red Spectrum - 1
  4. Infra Red Spectrum - 2
  5. Infra Red Spectrum - 3
  6. Infra Red Spectrum - 4
  7. Infra Red Spectrum - 5
  8. Infra Red Spectrum - 6
  9. Infra Red Spectrum - 7
  10. Infra Red Spectrum - 8

18. Enthalpy

21 lessons

  1. Chemical and Heat Energy
  2. Enthalpy and Enthalpy Change
  3. Exothermic and Endothermic Reactions
  4. Standard Conditions
  5. Standard Enthalpy Change of Combustion
  6. Experimental Determination of Enthalpy Change of Combustion
  7. Evaluating Sources of Error
  8. Standard Enthalpy Change of Neutralisation
  9. Experimental Determination of Standard Enthalpy Change of Neutralisation
  10. Standard Enthalpy Change of Formation
  11. Enthalpy Change of a Reaction
  12. Hess's Law
  13. Hess's Law Example 2
  14. Hess's Law Example 3
  15. Hess's Law Example 4
  16. Hess's Law Example 5
  17. Hess's Law Example 6
  18. Hess's Law Example 7
  19. Hess's Law Example 8
  20. Hess's Law Example 9
  21. Hess's Law Example 10

19. Bond Enthalpy

10 lessons

  1. Bond Enthalpies
  2. Calculations using Mean Bond Enthalpies
  3. Bond Enthalpy Question - 1
  4. Bond Enthalpy Question - 2
  5. Bond Enthalpy Question - 3
  6. Bond Enthalpy Question - 4
  7. Bond Enthalpy Question - 5
  8. Bond Enthalpy Question - 6
  9. Bond Enthalpy Question - 7
  10. Bond Enthalpy Question - 8

20. Reaction Rates

12 lessons

  1. The Rate of Reaction
  2. Collision Theory
  3. Activation Energy
  4. Steric Hindrance
  5. Effect of Concentration
  6. Effect of Pressure
  7. Effect of Surface Area
  8. Maxwell-Boltzmann Distribution Curve
  9. Effect of Temperature
  10. Collisions in Solution
  11. Effect of Catalysts
  12. Catalysts in Industry

21. Reversible Reactions and Dynamic Equilibrium

18 lessons

  1. Reversible Reactions
  2. Dynamic Equilibrium
  3. Effect of Change in Concentration
  4. Effect of Change in Pressure
  5. Effect of Change in Temperature
  6. Effect of Catalysts
  7. Limitations of Predictions
  8. Homogeneous and Heterogeneous Equilibria
  9. The Equilibrium Law
  10. Homogeneous Systems
  11. Heterogeneous Systems
  12. Industrial Processes
  13. The Contact Process
  14. Exam-Style Questions - 1
  15. Exam-Style Questions - 2
  16. Exam-Style Questions - 3
  17. Exam-Style Questions - 4
  18. Exam-Style Questions - 5