Chemical composition of sea water Student activity Play

Chemical elements essential for plants Slideshow Play

Chemical elements of the cell Whiteboard presentation Play

Chemical elements of the cell Class activity Play

Co-ordination number. Shapes of complex ions Animation Play

Coefficients in gaseous reactions Animation Play

Complex ions Student activity Play

Composition of air Student activity Play

Composition of inhaled and exhaled air Chart Play

Composition of inhaled and exhaled air Student activity Play

Compounds in sea water Slideshow Play

Conditions on the primitive Earth Student activity Play

Conditions on the primitive Earth Slideshow Play

Conducting electricity Whiteboard exercise Play

Conducting electricity Student activity Play

Conducting electricity Simulation Play

Conversion of dinitrogen tetroxide to nitrogen dioxide Animation Play

Copper sulphide Animation Play

Coupling patterns: 1H atoms on oxygen and nitrogen Student activity Play

Coupling patterns: hydrogen atoms on oxygen and nitrogen Whiteboard exercise Play

Covalent bonding Whiteboard exercise Play

Covalent bonding (2) Student activity Play

Cyanobacteria Student activity Play

Dative (coordinate) bond Student activity Play

Dative bond in the ammonium cation Animation Play