Determination of enthalpy change in combustion reactions Whiteboard exercise Play

Determination of enthalpy change in combustion reactions (1) Student activity Play

Determination of enthalpy change in combustion reactions (2) Student activity Play

Determination of reaction rate by mass, conductometric and colorimetric measurements Student activity Play

Determination of reaction rate by measuring the volume or pressure of the gas evolved Student activity Play

Determination of the reducing or oxidising ability of a chemical species Animation Play

Different chemical reactions Slideshow Play

Different physical and chemical properties of isomers Animation Play

Different types of chemical energy Slideshow Play

Diffraction Student activity Play

Diffraction Slideshow Play

Digestive enzymes and chemical digestion Whiteboard exercise Play

Dinitrogen tetroxide – nitrogen dioxide chemical equilibrium Animation Play

Discontinuous variation Student activity Play

Discontinuous variation Slideshow Play

Distinguish between a physical and a chemical change Whiteboard exercise Play

Distinguish between a physical and a chemical changes Whiteboard exercise Play

Does a chemical compound have a constant composition? Whiteboard exercise Play

Does a chemical compound have a constant composition? Student activity Play

Dragsters Animation Play

Dynamic state of chemical equilibrium Student activity Play

Dynamic state of chemical equilibrium Whiteboard exercise Play

Early attempts to classify chemical elements Whiteboard exercise Play

Early attempts to classify chemical elements Student activity Play

Early attempts to classify chemical elements Whiteboard exercise Play