Deduction Student activity Play

Density Animation Play

Density of transition metals Illustration Play

Detecting the presence of certain elements in a chemical compound Animation 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

Determining the empirical formula Student activity Play

Determining the empirical formula Whiteboard exercise Play

Determining the formula of a compound knowing the valence of its elements Student activity Play

Different chemical reactions Slideshow Play

Different physical and chemical properties of isomers Animation Play

Different types of chemical energy Slideshow Play

Digestive enzymes and chemical digestion Whiteboard exercise Play

Dinitrogen tetroxide – nitrogen dioxide chemical equilibrium Animation 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

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

Early attempts to classify chemical elements (1) Student activity Play

Early attempts to classify chemical elements (2) Student activity Play