1°, 2° and 3° carbocations Animation Play

A balanced diet Slideshow Play

A regular arrangement of the substituents Animation Play

Absorption of light by transition metal ions Animation Play

Absorption spectra Student activity Play

Absorption spectrum of Ti(III) ions Illustration Play

Active site Animation Play

Addition of elements to alkenes Student activity Play

Aesthetic organic molecules Animation Play

Agriculture – an early stage of secondary succession Student activity Play

Alkene reactions Whiteboard presentation Play

Alkene reactions Class activity Play

Amides and nitriles Student activity Play

Ammine complexes with non-octahedral geometry Animation Play

Analysis of the energy profile for chemical reactions Whiteboard exercise Play

Area of more complex region on the plane Whiteboard exercise Play

Area of more complex region on the plane Whiteboard exercise Play

Areas of more complex regions on the plane Student activity Play

Biologically important transition metal complexes Whiteboard exercise Play

Biologically important transition metal complexes Student activity Play

Bohr's atomic model Student activity Play

Bohr's theory of hydrogen atom Animation Play

Carbocations Animation Play

Carbon – the unique chemical element Animation Play

Carbon – the unique chemical element Student activity Play