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

Does a compound have a constant composition? Student activity Play

Does a compound have a constant composition? Simulation Play

Does aluminium corrode? Student activity Play

Does aluminium corrode? Whiteboard exercise Play

Does chemically pure water conduct an electric current? Student activity Play

Does chemically pure water conduct an electric current? Simulation Play

Double helix Animation Play

Doublet and triplet Animation Play

Drug doses Student activity Play

Drug doses Whiteboard exercise Play

Drugs do harm and poisons heal? Slideshow Play

Duralumin Slideshow Play

Duralumin Illustration Play

Dynamic equilibrium Animation Play

Dynamic state of chemical equilibrium Student activity Play

Dynamic state of chemical equilibrium Whiteboard exercise Play

E1 and E2 mechanisms Animation Play

Early atomic theories Class activity Play

Early atomic theories Whiteboard presentation Play

Early atomic theories Whiteboard exercise Play

Early atomic theories Student activity Play

Early atomic theories 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 Whiteboard exercise Play

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

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

Early concepts of the structure of benzene Student activity Play

Early concepts of the structure of benzene Whiteboard exercise Play