Chemical synapses – one-way only Animation Play

Chemical synapses – speed Animation Play

Chemical transmitters of information – hormones Whiteboard exercise Play

Chemical transmitters of information – hormones Student activity Play

Chemical weathering Whiteboard exercise Play

Chemical weathering Animation Play

Chemical weathering Student activity Play

Chemical weathering of buildings Slideshow Play

Chemical weathering of limestone rocks Slideshow Play

Chlorides of Group 2 elements Animation Play

Chromium(III) and iron(II) compounds Animation Play

Cis- and trans-isomers of compounds with a double carbon-carbon bond Animation Play

Classification of elements Animation Play

Classification of hormones by chemical composition Chart Play

Collection of gases evolved from chemical reactions Whiteboard exercise Play

Collection of gases evolved from chemical reactions Student activity Play

Collision of molecules Whiteboard exercise Play

Collision of molecules Student activity Play

Colour of complex ions Student activity Play

Combining identical elements Animation Play

Combustion of hydrogen Animation Play

Combustion of magnesium and aluminium: a chemical change Animation Play

Combustion of phosphorus in oxygen Animation Play

Combustion tests Student activity Play

Complex formation and the solubility of ionic compounds Student activity Play