Application of chemical compounds for detecting the presence of water Animation Play

Behaviour of halide ions in the presence of silver nitrate(V) Animation Play

Carbohydrates – structure; presence and function in living organisms Student activity Play

Carbohydrates – structure; presence and function in living organisms Whiteboard exercise Play

Classification of bacteria according to oxygen presence Simulation Play

Colour change of indicator papers in the presence of acids Animation Play

Detecting the presence of certain compounds Slideshow Play

Detecting the presence of certain elements in a chemical compound Animation Play

Detecting the presence of chlorine in haloalkanes Animation Play

Detecting the presence of fats Animation Play

Detecting the presence of fats using a dye Animation Play

Detection of the presence of water Student activity Play

Detection of the presence of water Whiteboard exercise Play

Determining the presence of protein in foods Simulation Play

How the reaction proceeds in the presence of the enzyme Animation Play

Reaction of aluminium in the presence of air Animation Play

Testing for the presence of a hydroxyl group Animation Play

The behaviour of the alkaline earth metals in the presence of water Animation Play

The presence of halide ions in the electrolyte Slideshow Play

The presence of metal and non-metal ions in the electrolyte Animation Play