Quaternary ammonium salts Student activity Play

Reactions between halogens and metals Student activity Play

Reactions between metal halides and concentrated sulphuric acid Student activity Play

Reactions between metal halides and sulphuric acid Animation Play

Reactions of alkali metals Whiteboard presentation Play

Reactions of alkali metals Class activity Play

Reactions of halogens Class activity Play

Reactions of halogens Whiteboard presentation Play

Reactions of the halogens Whiteboard presentation Play

Reactions of the halogens Class activity Play

Reactivity of halogens Student activity Play

Reactivity towards hydrogen halides Animation Play

Role of cations in plant cells Slideshow Play

Role of macro-elements absorbed as cations Student activity Play

Salt hydrolysis Student activity Play

Salt hydrolysis Whiteboard exercise Play

Salts of strong acids and weak bases Student activity Play

Soaps Student activity Play

Soil as a source of minerals Student activity Play

Solubility of salts Student activity Play

Solubility of silver halides Whiteboard exercise Play

Solubility of silver halides in aqueous ammonia solution Animation Play

Structure and properties of amines Class activity Play

Structure and properties of amines Whiteboard presentation Play

Structure and properties of quaternary ammonium salts Animation Play