Spontaneity of the process Whiteboard exercise Play

Spontaneous changes Animation Play

Spontaneous changes and probability Student activity Play

Square roots Simulation Play

Square roots Student activity Play

Squares Simulation Play

SSS property of similar triangles Whiteboard exercise Play

SSS property of similar triangles Student activity Play

Stages of the polymerase chain reaction Whiteboard exercise Play

Standard enthalpies of combustion for selected substances Chart Play

Standard enthalpy change Animation Play

Standard enthalpy change Student activity Play

Standard enthalpy change Whiteboard exercise Play

Standard enthalpy change for hydrogenation of ethene Animation Play

Standard enthalpy change. Hess’s law Class activity Play

Standard enthalpy change. Hess’s law Whiteboard presentation Play

Standard enthalpy of atomisation Whiteboard exercise Play

Standard enthalpy of atomisation Student activity Play

Standard enthalpy of combustion Student activity Play

Standard enthalpy of formation Student activity Play

Standard enthalpy of formation and combustion reactions Illustration Play

Standard enthalpy of formation for ionic compounds Whiteboard exercise Play

Standard enthalpy of formation for ionic compounds Student activity Play

Standard enthalpy of formation for phosphorus trichloride Whiteboard exercise Play

Standard enthalpy of formation of ammonia Animation Play