Addition reactions in alkenes – reaction with bromine Student activity Play

Additional information contained in chemical equations Student activity Play

Additional information contained in chemical equations Animation Play

Algebraic method Animation Play

Aliphatic amines: properties as bases Student activity Play

Alkalinity of hydroxides Animation Play

Alkanes Student activity Play

Alkyl groups Student activity Play

Alkyl groups as side substituents Animation Play

All salts are electrolytes Animation Play

Ammonia Animation Play

Ammonia Student activity Play

Ammonia molecule Illustration Play

Ammonia – a weak base Animation Play

Ammonium cation Animation Play

Ammonium nitrate Animation Play

Amphoteric metal hydroxides Animation Play

Antiparticles Animation Play

Antiparticles – matter and antimatter Student activity Play

Applications of hydrogen Illustration Play

Applications of standard reduction potentials Student activity Play

Applications of standard reduction potentials Whiteboard exercise Play

Aqua regia Animation Play

Arrangement of chemical elements in the periodic table Student activity Play

Atomic masses in the periodic table Student activity Play