Reaction of aqua ions with carbonates Student activity Play

Reaction of metal ions with alkalis Student activity Play

Reaction with sodium hydroxide Animation Play

Reactions of the carboxyl group Student activity Play

Relationship between Kp and Kc Student activity Play

Resonance energy for benzene Animation Play

Resonance structures for benzene Animation Play

Resonance structures of benzene Student activity Play

Resultant force and component forces Animation Play

Resultant moment of forces Animation Play

Reversible reactions and chemical equilibrium Whiteboard presentation Play

Reversible reactions and chemical equilibrium Class activity Play

Rolling down an inclined plane Student activity Play

Rotation versus the position of equilibrium Student activity Play

Rotation versus the position of equilibrium Slideshow Play

Rotation versus the position of equilibrium Whiteboard exercise Play

Scalar-multiple hunting Student activity Play

Shear and torsion Student activity Play

Sledge Animation Play

Solid-liquid equilibrium Animation Play

Solid-liquid phase change Student activity Play

Solid-liquid phase change Whiteboard exercise Play

Solid-vapour equilibrium Student activity Play

Solid-vapour equilibrium Whiteboard exercise Play

Solids in equilibrium Whiteboard exercise Play