IGCSE Chemistry Lessons

A series of free IGCSE Chemistry Lessons (Cambridge IGCSE Chemistry) and past papers.

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Past Papers Required Practicals Chemistry Lessons

Chemistry Past Papers

Cambridge IGCSE Past Papers, Mark Schemes, Questions and Solutions Questions and Solutions for Cambridge IGCSE Chemistry 0620 Papers 2, 4, 6

Edexcel IGCSE Past Papers, Mark Schemes, Questions and Solutions Questions and Solutions for Edexcel IGCSE Chemistry 4CH1 Papers 1, 2

Chemistry Lessons


The nature of matter
Separating and purifying substances
Atoms and molecules
The structure of the atom
Electron arrangements in atoms
Estimate Oxygen in Air
Air and Water
Limestone Cycle
Hydrogen Fuel Cell
Cooling and Heating Curves
Separate Salt and Sand
Simple Distillation
Fractional Distillation
Diffusion vs Brownian Motion
Structure of Atom
Ar and Isotopes

Elements And Compounds

Elements and compounds
The Periodic Table
Trends in groups
Trends across a period
Chemical bonding in elements and compounds
Chemical formulae of elements and compounds
Metals, alloys and crystals
Periodic Table
Group 1 - Alkali Metals
Group 2 - Alkaline Earth Metals
Group 0 and Group 7
Electrical Conductivity
Covalent Bonding
Giant Covalent Molecules
Ionic Bonding
Metallic Bonding

Chemical Reactions

Chemical reactions
Chemical reactions and equations
Equations for chemical reactions
Types of chemical reaction
Redox reactions
Electrode reactions
Balancing Chemical Equations
Types of Chemical Reactions
Redox Reactions
Conductivity of Solutions
Electrolysis of NaCl Solution
Electrolysis of Copper Sulphate
Extraction of Aluminium

Acids, Bases And Salts

Acids, bases and salts
What is an acid?
Acid and alkali solutions
Metal oxides and non-metal oxides
Acid reactions in everyday life
Alkalis and bases
Characteristic reactions of acids
Acids and alkalis in chemical analysis
Preparing soluble salts
Preparing insoluble salts
Strong and weak acids and alkalis
Red Cabbage Indicator
pH Rainbow Tube
Test the pH of Household Products
Acid-Alkali Reaction
Prepare Copper(II) Sulphate
Prepare Lead(II) Iodide

Quantitative Chemistry

Quantitative chemistry
Chemical analysis and formulae
The mole and chemical formulae
The mole and chemical equations
Calculations involving gases
Moles and solution chemistry
What is a Mole?
Moles, Atoms, Molecules, Gases
Molar Mass, Grams, Moles
Limiting Reactant
Percentage Yield and Purity
Empirical Formula - MgO
CaCO3 in Egg Shell
CaCO3 - Back Titration
Solubility Curves

Rates Of Reactions

How far? How fast?
Energy changes in chemical reactions
Rates of reaction
Photochemical reactions
Reversible reactions and chemical equilibria
Exothermic and Endothermic Reactions
Heat of Combustion
Heat of Displacement
Rates of Reaction
Rate of Reaction and Concentration
Photochemical Reactions
Chemical Equilibrium
Reversible Reactions


Patterns and properties of metals
The alkali metals
The transition elements
The reactivity of metals
Electrical cells and energy
Properties of Metals & Alloys
Aluminium & Titanium
Transition Metals
Reactivity Series
Decomposition of Metal Compounds
Electrochemical Cells

Industrial Processes

Industrial inorganic chemistry
The extraction of metals by carbon reduction
The extraction of metals by electrolysis
Ammonia and fertilisers
Sulfur and sulfuric acid
The chlor–alkali industry
The economics of the chemical industry
Reduction of Copper Oxide
Techniques for Extracting Metals
Extracting Metals by Carbon Reduction
Extracting Iron from Iron Ore
Extracting Aluminium by Electrolysis
Ammonia and Fertilisers
Making Sulfuric Acid
Chlor-Alkali industry

Organic Chemistry

Organic chemistry
The unique properties of carbon
Hydrocarbon structure and isomerism
Chemical reactions of the alkanes
Chemical reactions of the alkenes
The reactions of ethanol
Organic acids and esters
Homologous Series
Alkanes and Alkenes Tests
Naming Alkanes and Isomers
Naming Alkenes and Alcohols
Alkane Reactions
Alkene Reactions
Alcohol Reactions
Making Ethanol
Carboxylic Acids

Petrochemicals And Polymers

Petrochemicals and polymers
Alternative fuels and energy sources
Addition polymerisation
Condensation polymerisation
Fuels and Alternatives
Addition Polymerisation
Condensation Polymerisation
Natural Polymers

Chemical Analysis

Chemical analysis and investigation
Inorganic analysis
Organic analysis
Experimental design and investigation
Practical examinations
Identify Cations
Identify Anions
Collect and Identify Gases
Identify Hydrocarbons and Others
Analyse a Compound
Alternative to Practical

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