A solution, a solvent and a solute Whiteboard exercise Play

A typical heating curve for a pure substance Illustration Play

Absorption and waste Class activity Play

Abundance of chemical elements in nature Student activity Play

Acid rain destroys forests Animation Play

Acids Student activity Play

Acid–base reactions in a non-aqueous medium Animation Play

Adverse effects of acid rain Slideshow Play

Adverse effects of aldehydes and ketones on the human organism Slideshow Play

Ammonia and nitric acid Class activity Play

Ammonia and nitric acid Whiteboard presentation Play

Applications of haloalkanes Slideshow Play

Applications of standard reduction potentials Whiteboard exercise Play

Applications of standard reduction potentials Student activity Play

Arrangement of chemical elements in the periodic table Student activity Play

Atoms, nucleons and electrons Student activity Play

Atoms, nucleons and electrons Illustration Play

Avogadro's law Animation Play

Avogadro's number Student activity Play

Biologically important transition metal complexes Student activity Play

Calculating mass given the number of moles Simulation Play

Calculating mass given the number of moles Student activity Play

Calculating the masses of reacting substances Chart Play

Calculating the masses of reacting substances Whiteboard exercise Play

Calculating the masses of reacting substances (1) Student activity Play