Cambridge O Level Chemistry (CIE)
12 units285 videos36 hours
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Unit 1: States of matter
Properties of solids, liquids and gases
Effect of temp and pressure on state change5:21
Explanation: Thermal expansion of liquids1:04
Activity: Thermal expansion in gases0:40
Enthalpy and phase changes ✓ Check-ins3:13
States of matter ✓ Check-ins19:24
States of matter ✓ Check-ins4:29
Representing solids, liquids, and gases using particulate models ✓ Check-ins4:51
Digging Deeper into Gases5:36
States of matter follow-up ✓ Check-ins8:45
Why Water Vapor Exists Without Boiling: Evaporation vs Boiling6:36
States of matter (Bonus video)12:15
Changing States of Matter : Part 16:53
Changing States of Matter : Part 26:01
Phase changes ✓ Check-ins7:38
Unit 2: Atoms,elements and compounds
Elements, compounds and mixtures
Atomic structure and the Periodic Table
Stability of Atom7:09
Protons, neutrons, and electrons in atoms ✓ Check-ins2:31
Elements and atoms ✓ Check-ins13:09
Introduction to the atom ✓ Check-ins21:05
Elements and atomic number ✓ Check-ins4:34
Worked example: using the mass number equation ✓ Check-ins2:01
Atomic number, mass number7:12
Electron distribution in shells10:05
Given atomic number find position and vice-versa (Solved example)11:08
Isotopes
Ion and ionic bonds
Simple molecules and covalent bonds
Covalent bonds ✓ Check-ins5:43
Covalent bond12:34
Covalent bond: Molecules with same atoms4:49
Covalent bond: Molecules with different atoms5:46
Covalent bond and Lewis dot structure of H2O & CO210:12
Lewis diagrams for molecules ✓ Check-ins14:38
Dot structures I: Single bonds ✓ Check-ins6:57
Dot structures II: Multiple bonds ✓ Check-ins5:59
Molecular solids ✓ Check-ins8:13
Giant covalent structures
Unit 3: Stoichiometry
Formulae
Compounds and chemical formulas ✓ Check-ins6:01
Empirical, molecular, and structural formulas ✓ Check-ins6:50
Worked example: Finding the formula of an ionic compound ✓ Check-ins2:59
Naming ionic compound with polyvalent ion ✓ Check-ins4:02
Common polyatomic ions ✓ Check-ins5:48
Worked example: Formula for an ionic compound3:31
Worked example: writing empirical formulas for ionic compounds ✓ Check-ins5:54
Chemical equations ✓ Check-ins8:05
Chemical reactions introduction ✓ Check-ins9:13
Worked examples: Balancing chemical equations ✓ Check-ins7:44
Molecular, complete ionic, and net ionic equations ✓ Check-ins5:55
Dissolution and precipitation ✓ Check-ins10:00
Relative masses of atoms and molecules
The mole and the Avogadro constant
The mole and Avogadro's number ✓ Check-ins8:57
Understanding mole concept through a problem7:28
Calculations using Avogadro's number (part 1) ✓ Check-ins13:31
Calculations using Avogadro's number (part 2) ✓ Check-ins14:33
Worked example: Calculating molar mass and number of moles ✓ Check-ins5:49
Avogadro's law7:57
Avogadro's law ✓ Check-ins8:12
Molarity ✓ Check-ins5:03
Chemical calculations
Stoichiometry ✓ Check-ins9:24
Stoichiometry example problem 1 ✓ Check-ins11:36
Calculating amount of reactants and products4:57
Worked example: Calculating amounts of reactants and products ✓ Check-ins12:06
Stoichiometry: Mass-to-mass and limiting reagent ✓ Check-ins14:56
Limiting reactant example problem 1 edited ✓ Check-ins18:04
Stoichiometry: mole-to-mole and percent yield ✓ Check-ins10:24
Worked example: Determining solute concentration by acid–base titration ✓ Check-ins7:50
Worked example: Determining an empirical formula from percent composition data ✓ Check-ins4:35
Worked example: Determining an empirical formula from combustion data ✓ Check-ins10:02
Worked example: Calculating mass percent ✓ Check-ins5:38
Unit 4: Electrochemistry
Understanding electrolysis
Electrolysis of aqueous and molten electrolytes
Electroplating
Unit 5: Chemical energetics
Exothermic and endothermic reactions
Exothermic and endothermic reactions11:29
Endothermic and exothermic reactions ✓ Check-ins5:43
Exothermic and endothermic: Common processes and solved examples6:11
Endothermic and exothermic processes ✓ Check-ins8:00
Enthalpy ✓ Check-ins8:34
Representing endothermic and exothermic processes using energy diagrams ✓ Check-ins5:05
Bond enthalpies ✓ Check-ins9:33
Collision theory ✓ Check-ins8:48
Energy changes in chemical reactions (part 1) ✓ Check-ins7:24
Energy changes in chemical reactions (part 2) ✓ Check-ins7:46
Catalysts ✓ Check-ins5:03
Worked example: Using bond enthalpies to calculate enthalpy of reaction ✓ Check-ins9:03
Unit 6: Chemical reactions
Physical and chemical changes
Rate of reaction
Collision theory and the Maxwell–Boltzmann distribution ✓ Check-ins7:28
The Maxwell–Boltzmann distribution ✓ Check-ins9:30- Catalysts ✓ Check-ins5:03
Enzymes and activation energy ✓ Check-ins5:32
Catalysts ✓ Check-ins7:30
Factors affecting reaction rates ✓ Check-ins5:29
Introduction to reaction rates ✓ Check-ins9:14
Introduction to kinetics ✓ Check-ins15:27
Reversible reactions and equilibrium
Reversible reactions and equilibrium ✓ Check-ins2:39
Direction of reversible reactions ✓ Check-ins7:28
Dynamic equilibrium ✓ Check-ins8:11
Le Châtelier's principle ✓ Check-ins5:46
Worked example: Using Le Chȃtelier’s principle to predict shifts in equilibrium ✓ Check-ins3:58
Le Chȃtelier’s principle: Changing temperature ✓ Check-ins11:16
Worked example: Calculating the equilibrium total pressure after a change in volume ✓ Check-ins7:11
Le Chȃtelier’s principle: Changing concentration ✓ Check-ins8:38
Le Chatelier's Principle: Adding a catalyst4:43
Redox reactions
Common simple redox reaction6:58
Oxidation and reduction (Conventional definition)10:09
Oxidation and reduction ✓ Check-ins11:04
Oxidation state trends in periodic table ✓ Check-ins8:38
Practice determining oxidation states ✓ Check-ins4:27
Unusual oxygen oxidation states ✓ Check-ins4:15
Worked example: Using oxidation numbers to identify oxidation and reduction ✓ Check-ins5:03
Simple redox reactions ✓ Check-ins12:55
Redox titrations ✓ Check-ins7:58
Worked example: Balancing a simple redox equation ✓ Check-ins7:11
Oxidizing and reducing agents ✓ Check-ins8:30
Unit 7: Acids, bases and salts
The characteristic properties of acids and bases
Common properties of acidbases and pH importance6:35
pH change and the concentration of H+OH6:26
Arrhenius acids and bases ✓ Check-ins7:50
Intro to acids and bases ✓ Check-ins12:13
Brønsted–Lowry acids and bases ✓ Check-ins8:57
Acid-base definitions ✓ Check-ins8:31
Metal and non metal oxides, reacting with acids and bases7:40
Metals reacting with water10:46
Reaction of acids & bases9:58
Reaction of acids and bases with metals7:07
Reaction of acids with metal carbonates and bicarbonates6:04
Neutralization Reaction - Acid base reactions6:16
Acid base neutralisation reaction7:41
Strong acid–strong base reactions ✓ Check-ins9:29
Litmus solution (Natural indicator)10:14
Litmus paper as an Indicator5:02
Strong and weak acids/bases5:16
Weak acid equilibria ✓ Check-ins11:10
Strong base solutions ✓ Check-ins5:27
Introduction to pH ✓ Check-ins5:22
The pH scale ✓ Check-ins7:44
Unit 8: The periodic table
Arrangement of elements
Transition elements
Unit 9: Metals
Properties of metals
Uses of metals
Alloys and their properties
Reactivity series
Corrosion of metals
Unit 10: Chemistry of the environment
Water
Water Pollution Causes and Types of Pollutant8:05
Human impact on aquatic environments ✓ Check-ins4:42
Sewage treatment ✓ Check-ins4:53
WATCH: Cleaning Water Pollution in the Industrial Revolution ✓ Check-ins4:04
Importance of water for life ✓ Check-ins8:52
Eutrophication and dead zones ✓ Check-ins6:36
The scientific method ✓ Check-ins11:49
Boiling point elevation and freezing point depression ✓ Check-ins14:00
Air quality and climate
Need for Conservation - Environment5:27
Air5:35
Harmful effects of burning fuel5:19
Pollution and human health ✓ Check-ins6:26
Earth's changing climate ✓ Check-ins4:30
Air Pollution - Atmosphere9:43
A thermal inversion example: the Donora smog ✓ Check-ins1:54
Greenhouse effect and greenhouse gases ✓ Check-ins6:59
The greenhouse effect ✓ Check-ins13:28
Acid rain ✓ Check-ins7:41
Reduction of air pollutants ✓ Check-ins6:38
Photosynthesis ✓ Check-ins13:37
Breaking down photosynthesis stages ✓ Check-ins4:48
Photosynthesis13:44
Photosynthesis in organisms ✓ Check-ins4:01
Unit 11: Organic chemistry
Formulae, functional groups and terminology
Alkanes, Alkenes and Alkynes General molecular formulae15:56
Representing structures of the organic molecules7:29- Dot structures I: Single bonds ✓ Check-ins6:57
Bond-line structures ✓ Check-ins12:57
Alkane and cycloalkane nomenclature I ✓ Check-ins12:41
Hydrocarbon overview: Alkanes, Alkenes, and Alkynes2:17- Dot structures II: Multiple bonds ✓ Check-ins5:59
Alkene structure and classification ✓ Check-ins8:13
Isomers ✓ Check-ins6:49
Functional groups10:03
Functional groups ✓ Check-ins7:23
Identifying functional groups ✓ Check-ins9:18
Homologous series7:10
Alkanes, Alkenes, and Alkynes General molecular formula5:06
Naming organic compounds
Fuels
Alkanes
Alkenes
Alcohols
Carboxylic acids
Polymers
Properties & uses of plastic6:05
Rayon Nylon Polyester & Acrylic7:18
Introduction to Polymers & Synthetic Fibers5:06
How are plastics made?3:47
Plastics & Types of Plastics6:25
Plastics and environment5:58
Crystalline and amorphous polymers ✓ Check-ins4:42
Peptide bonds: Formation and cleavage ✓ Check-ins7:11
Introduction to proteins and amino acids ✓ Check-ins5:53
Amino acid structure ✓ Check-ins10:55
Peptide bond formation ✓ Check-ins8:26
Unit 12: Experimental design
Definitions
Acid–base titrations
Chromatography
Separation and purification
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