Reduction of aromatic nitro compounds Animation Play

Relation between enthalpy of solution and enthalpy of hydration Whiteboard exercise Play

Resonance energy for benzene Animation Play

Role of cations in plant cells Slideshow Play

Role of macro-elements absorbed as cations Student activity Play

Salts of carboxylic acids Student activity Play

Sample compounds Slideshow Play

Sample formulae Illustration Play

Saturated and unsaturated compounds Animation Play

Sea water Student activity Play

Sea water game Whiteboard exercise Play

Selected compounds with three or more elements Whiteboard exercise Play

Simple and giant molecular solids Class activity Play

Simple and giant molecular solids Whiteboard presentation Play

Sodium chloride Animation Play

Sodium chloride formation Animation Play

Sodium fluoride Animation Play

Sodium sulphide Animation Play

Sodium, magnesium and aluminium oxides Animation Play

Solubility of silver halides Whiteboard exercise Play

Solubility of silver halides in aqueous ammonia solution Animation Play

Solving simple problems in probability Class activity Play

Solving simple problems in probability Whiteboard presentation Play

Sour taste Animation Play

Spectrum of unknown compound Whiteboard exercise Play