How to handle gases in a chemistry laboratory Student activity Play

How to write the numbers of molecules and numbers of atoms in a molecule Student activity Play

Hybridisation in the ammonia molecule Animation Play

Hydrogen atoms on oxygen or nitrogen are usually not coupled to their neighbours Animation Play

Hydrogen bonding Student activity Play

Hydrogen bonds Student activity Play

Hydrolysis of oxides Animation Play

Is the synthesis of ammonia spontaneous? Animation Play

Isotopes Animation Play

Journey to the centre of the Earth Student activity Play

Le Chatelier's principle for gas reactions Student activity Play

Lewis structures (dot diagrams) for atoms Animation Play

Light bulbs Slideshow Play

Liquefying of oxygen and nitrogen Illustration Play

Liquid nitrogen Slideshow Play

Macro-elements; trace elements and ultra-trace elements Slideshow Play

Mass spectra of diatomic elements Animation Play

Mass spectra of the elements Student activity Play

Maxwell–Boltzmann distribution of molecular energies Student activity Play

Melting Student activity Play

Melting points of oxides of Period 3 elements Animation Play

Metal oxides Slideshow Play

Mixing of atomic orbitals: sp2 hybridisation Student activity Play

Mixtures Class activity Play

Mixtures Student activity Play