How catalysts work? Student activity Play

Hydrogen atoms on oxygen or nitrogen are usually not coupled to their neighbours Animation Play

Hydrogen bromide addition to propene Animation Play

Increasing the concentrations of reacting substances Animation Play

Internal strain in cycloalkanes Animation Play

Ionisation energy Student activity Play

Iron(III) complex with the hexadentate ligand EDTA Illustration Play

Irregularities in the first ionisation energy trend Animation Play

Le Chatelier's principle Student activity Play

Lewis theory of acids and bases Student activity Play

Ligand exchange reactions Whiteboard presentation Play

Ligand exchange reactions Class activity Play

Ligand types Student activity Play

Ligand types Glossary Play

Major histocompatibility complex proteins Student activity Play

Markovnikov’s rule Student activity Play

Mass spectrometry. Part II Whiteboard presentation Play

Mass spectrometry. Part II Class activity Play

Mechanism of enzymatic reactions Student activity Play

Mechanism of enzymatic reactions Whiteboard exercise Play

Mechanisms of interaction between enzyme and substrate Animation Play

Molecular model of the enzyme–substrate complex structure Whiteboard exercise Play

More complex examples in factorising by completing the square Student activity Play

More complex examples in factorising by completing the square Whiteboard exercise Play

More complex problems involving direct proportionality Whiteboard exercise Play