Addition reaction – hydrogenation Student activity Play

Addition reactions in alkenes – reaction with bromine Student activity Play

Addition reactions in alkenes – reaction with bromine Simulation Play

Additional information contained in chemical equations Student activity Play

Additional information contained in chemical equations Animation Play

Adiabatic transitions in heat engines Student activity Play

Air pollution Student activity Play

Air pressure Whiteboard presentation Play

Air pressure Class activity Play

Algebraic method Animation Play

Alkanes Student activity Play

Alkyl groups Student activity Play

Alkyl groups as side substituents Animation Play

Allotropy of oxygen Illustration Play

Ammonia Animation Play

Ammonia Student activity Play

Ammonia and nitric acid Whiteboard presentation Play

Ammonia and nitric acid Class activity Play

Ammonia molecule Illustration Play

An adiabat Animation Play

An adiabat and an isotherm Whiteboard exercise Play

An adiabat and an isotherm Student activity Play

An adiabatic transition Student activity Play

An adiabatic transition Simulation Play

An adiabatic transition Whiteboard exercise Play