Proteins Class activity Play

Proton NMR spectrum of compound A Illustration Play

Pure substances and mixtures Student activity Play

Pure substances/Mixtures Whiteboard exercise Play

Pythagorean triples Student activity Play

Quantitative composition of a chemical compound Animation Play

Questions about air Whiteboard exercise Play

Radian measure of angles Animation Play

Radiation Animation Play

Radiation Animation Play

Radioactivity Student activity Play

Reaction between sodium and chlorine Student activity Play

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

Reaction of polymerisation Animation Play

Reactions between alkali metals and the halogens Student activity Play

Reactions between halogens and metals Student activity Play

Reactions in the gas phase Animation Play

Reactions involving phase changes Animation Play

Reactions of alkali metals Whiteboard presentation Play

Reactions of alkali metals Class activity Play

Reactions of complex ions Whiteboard exercise Play

Reactions of complex ions Student activity Play

Reasons for the high reactivity of alkenes Whiteboard exercise Play

Reasons for the high reactivity of alkenes (2) Student activity Play

Recognising oxidising and reducing agents Student activity Play