Planets Animation Play

Planets and moons Student activity Play

Planets and moons Whiteboard exercise Play

Practical importance of the mole Whiteboard presentation Play

Practical importance of the mole Class activity Play

Preparation of haloalkanes (2) Student activity Play

Reaction of ethene with bromine Animation Play

Reaction of hydrogen and oxygen in the gaseous phase Animation Play

Reaction yields Whiteboard exercise Play

Reaction yields Student activity Play

Reactions in the gaseous phase Whiteboard exercise Play

Reactions in the gaseous phase Whiteboard exercise Play

Reactions in the gaseous phase Student activity Play

Reactions occurring on the surface of a solid catalyst Student activity Play

Solid substances as catalysts in reactions in the gaseous phase Animation Play

Solid, liquid and gaseous states Student activity Play

Solid, liquid and gaseous states Whiteboard exercise Play

Solutions Student activity Play

Standard enthalpy of formation of ammonia Animation Play

Stoichiometric coefficients and the relative volumes of gases Student activity Play

The enthalpy change for the transformation of solid sulphur into gaseous sulphide ions Whiteboard exercise Play

The reaction of gaseous ammonia with gaseous hydrogen chloride Animation Play

The reactions that occur in a gaseous mixture of AB and CD molecules Whiteboard exercise Play

Using mean bond enthalpies in calculations. Part 1 Student activity Play

Using mean bond enthalpies in calculations. Part 2 Student activity Play