Video Lessons that bring to life those difficult concepts you’ve been struggling with.
A video for every Mandatory Experiment that walks you through the principles behind them and how they are carried out, always with a specific focus on the questions asked in the exam.
All of our content is sourced from and based on the key details from the Exam Marking Schemes needed for a H1.
Support whenever you stumble upon something challenging.
Handcrafted Questions to instantaneously verify your understanding of each lesson.
Our beautifully illustrated Revision Notes, styled on the videos to help you easily recall the key points you need for the exam.
Our Past Paper Portal helps you easily locate specific questions on the exact topic you are studying for most efficient exam preparation.
Orbitals overlapping head on is Sigma every time.
If you're not part of the solution, you must be the precipitate!
Having problems seeing orbitals in 3 dimensions? Check out 2.4 Atomic Orbitals & Electronic Configurations.
Didn't make the connection between reactivity and electronegativity? Well there it is.
Are you really not planning on doing Q3!?
If you've tried to learn things like this off by heart, please stop! We'll help you understand it in a way that you'll never forget it.
Over 80 animated videos that take you from first principles right through to everything you need to know for the exam.
More than 400 handcrafted quizzes, modelled on past paper questions, that will test your understanding every step of the way.
Over 80 sets of illustrated revision notes that summarise all of the key details you need to know.
Our Past Paper Portal categorises all past paper questions by topic making it easy for you to find the questions you need so you can spend time doing them rather than searching for them.
1.1 The History of the Atom
1.2 Arrangement of electrons in the Atom
1.3 Radioactivity
ME 1.1 Flame Tests
2.1 History of the Periodic Table
2.2 Using the Periodic Table
2.3 Isotopes, Relative Atomic Mass & The Mass Spectrometer
2.4 Atomic Orbitals & Electronic Configurations
2.5 Trends in the Periodic Table
3.1 Ionic Bonding
3.2 Covalent Bonding
3.3 Shapes of Molecules
3.4 Electronegativity and Molecular Polarity
3.5 Intermolecular Forces
ME 3.1 Tests for Anions
4.1 Balancing Chemical Equations
4.2 The Mole
5.1 The Gas Laws
5.2 Kinetic Theory of Gases & The Ideal Gas Equation
ME 5.1 To Find the Relative Molecular Mass of a Volatile Liquid
6.1 Mass-Moles-Particles
6.2 Percentage Composition by Mass & Empirical Formulas
6.3 Mass-Mass Equations
6.4 Gases in Equations
6.5 Solutions
6.6 Solutions in Equations
6.7 Further Stoichiometry
7.1 Types of Acids and Bases
7.2 Neutralisation Reactions & Volumetric Analysis
ME 7.1 To Prepare a Standard Solution of Sodium Carbonate
ME 7.2 Standarising a HCl Solution
ME 7.3 To Determine the Concentration of Ethanoic Acid in Vinegar
ME 7.4 To Determine the Water of Crystallisation in Washing Soda
8.1 Oxidation and Reduction Reactions
8.2 Oxidation Numbers
8.3 Electrochemistry
ME 8.1 REDOX Reactions of a) Metals and b) Halogens
ME 8.2 To Standardise a Solution of Potassium Permanganate
ME 8.3 To Determine the Amount of Iron in an Iron Tablet
ME 8.4 To Standardise a solution of Sodium Thiosulphate against a solution of Iodine
ME 8.5 To Determine the Percentage of Sodium Hypochlorite in Bleach
9.1 What is Rate of Reaction?
9.2 Measuring Rates of Reactions
9.3 Average Vs Instantaneous Rates of Reaction
9.4 Collision Theory
9.5 Factors that affect Rate of Reaction
9.6 Catalysts
ME 9.1 Decomposition of Hydrogen Perioxide
ME 9.2 Sodium Thiosulphate + HCl
10.1 What is Chemical Equilibrium
10.2 The Equilibrium Law
10.3 Problems using Kc
10.4 Le Chatelier’s Principle
ME 10.1 Le Chatlelier’s Principle
11.1 Water and pH
11.2 pH Calculations
11.3 Indicators
12.1 Hardness in Water
12.2 Water treatment
12.3 Pollution
ME 12.1 To determine the total hardness in a water sample using EDTA
ME 12.2 To determine the total suspended and dissolved solids in a water sample
ME 12.3 To measure the amount of dissolved oxygen in a sample of water by means of a REDOX titration
ME 12.4 To estimate the concentration of free chlorine in swimming-pool water
13.1 Hydrocarbons
13.2 Refining of Oil
13.3 Thermochemistry
ME 13.1 To Prepare Ethene and Examine its Properties Summary Sheet.html
ME 13.2 To prepare Ethyne and examine its properties
ME 13.3 To determine the Heat of Reaction of Hydrochloric acid with Sodium Hydroxide
14.1 Tetrahedral Organic Compounds
14.2 Planar Organic Compounds
14.3 Substitution Reactions
14.4 Addition & Elimination Reactions
14.5 REDOX Reactions and Organic Acids
14.6 Organic Synthesis
14.7 Chromatography and Instrumentation
ME 14.1 Extraction of Clove Oil
ME 14.2 To Prepare a Sample of Soap
ME 14.3 Ethanal and Ethanoic Acid
ME 14.4 Oxidation of Phenylmethanol
ME 14.5 Benzoic Acid
ME 14.6 Chromatography
