A balanced diet Student activity Play

A saturated salt solution Animation Play

A solution or not a solution?? Whiteboard exercise Play

A sulphate salt with a hydrophobic alkyl chain Animation Play

A sulphonate salt with a hydrophobic hydrocarbon chain Animation Play

Ability to react with metal salts Animation Play

Abundance of chemical elements in nature Student activity Play

Abundance of the elements in the crust and in the whole Earth Animation Play

Acidity reaction (hydrolysis) of metal ions Student activity Play

Acids and alkalis Class activity Play

Adaptations of fish to life in water Slideshow Play

Adaptations of fish to life in water Student activity Play

Adding carbonates to acids Animation Play

Addition of strong acid to an ammonium buffer Animation Play

Addition of strong base to an ammonium buffer Animation Play

ADH secretion and salt concentration Illustration Play

Aliphatic amines: properties as bases Student activity Play

Alkaline earth metals Slideshow Play

Alkaline earth metals Student activity Play

Aluminium(III) salt in acidic, neutral and alkaline medium Whiteboard exercise Play

Amphoteric properties of aluminium oxide Animation Play

An ammonium salt with a hydrophobic aliphatic chain Slideshow Play

Application of calcium hydroxide Animation Play

Application of iodine Slideshow Play

Aqueous solutions of bases Whiteboard exercise Play