Proteins Class activity Play

Proton NMR spectrum of propanal Animation Play

Quadratic equation – example Animation Play

Rational numbers and geometric series – example Animation Play

Reaction mechanisms Student activity Play

Reaction of ammonia with aqua complex ions Animation Play

Reaction of iron(III) chloride with potassium iodide Animation Play

Reaction with ammonia Animation Play

Reaction with hydroxide ions Animation Play

Reactions of aqua ions with ammonia Student activity Play

Reactions of complex ions Whiteboard exercise Play

Reactions of complex ions Student activity Play

Reducing to vertex form – example Animation Play

Reversible and irreversible reactions Student activity Play

Roots of the quadratic equation – example Animation Play

Roots of the quadratic equation – example Animation Play

Salts of strong acids and weak bases Student activity Play

Simplifying algebraic fractions – more complex examples Student activity Play

Solution of the quadratic equation – example Animation Play

Solving problems involving quadratic equations (1) Whiteboard presentation Play

Solving problems involving quadratic equations (1) Class activity Play

Solving quadratic inequalities – example Animation Play

Solving rational equations Student activity Play

Spectral classes Chart Play

Stability of the metal complexes with multidentate ligands Animation Play