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

Reduction of aldehydes and ketones Whiteboard exercise Play

Reduction of aldehydes and ketones (1) Student activity Play

Reduction of aromatic nitro compounds Animation Play

Relation between enthalpy of solution and enthalpy of hydration Whiteboard exercise Play

Relationship between the atomic structure and the position of elements in periods Animation Play

Relative molecular mass Student activity Play

Resonance energy for benzene Animation Play

Resonance structures for benzene Animation Play

Resonance structures of benzene Student activity Play

Retina structure Animation Play

Ribosomes – structure and function Slideshow Play

Rockets Student activity Play

Rockets Whiteboard exercise Play

Role of cations in plant cells Slideshow Play

Role of macro-elements absorbed as cations Student activity Play