Calcium ions enter the synaptic knob Animation Play

Calculating mass given the number of moles Student activity Play

Calculating the composition of a mixture Whiteboard exercise Play

Calculating the composition of a mixture (1) Student activity Play

Calculating the composition of a mixture (2) Student activity Play

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

Calculating the relative molecular mass of a compound Whiteboard exercise Play

Calculations involving Kp Student activity Play

Calomel half-cell Whiteboard exercise Play

Calomel half-cell Student activity Play

Carbocations Whiteboard exercise Play

Carbohydrates: their structure; properties; occurrence and importance Whiteboard presentation Play

Carbohydrates: their structure; properties; occurrence and importance Class activity Play

Carbon atom and covalent bonding Animation Play

Carbon compounds Student activity Play

Carbon dioxide Student activity Play

Carbon – the unique chemical element Student activity Play

Carbon – the unique chemical element Animation Play

Carboxyl group Animation Play

Carboxyl group Illustration Play

Catalysts Student activity Play

Causes of ion formation (1) Student activity Play

Changes in atomic radius within a group of s-block elements Animation Play

Changes in oxidation states in redox reactions Student activity Play

Charges of ions of some elements Animation Play