Radiocarbon dating Student activity Play

Radiocarbon method and scintigraphy Whiteboard exercise Play

Radiocarbon method and scintigraphy Student activity Play

Radiocarbon method and scintigraphy Animation Play

Reactants and products Whiteboard exercise Play

Reaction conditions and enthalpy change Slideshow Play

Reaction mechanism Animation Play

Reaction yields Student activity Play

Reactions in the gaseous phase Student activity Play

Reactions occurring on the surface of a solid catalyst Student activity Play

Reactions of aldehydes and ketones Whiteboard presentation Play

Reactions of aldehydes and ketones Class activity Play

Reactions of enantiomers Student activity Play

Reactions of enantiomers with non-chiral and chiral reactants Animation Play

Reactions of nucleophiles: nucleophilic addition and addition-elimination Student activity Play

Reactions of the carboxyl group Student activity Play

Reactivity series Student activity Play

Reactivity series of metals Animation Play

Reagents, reactants and products Student activity Play

Reduction of aldehydes and ketones (1) Student activity Play

Regulation of carbon dioxide concentration by plants Simulation Play

Regulation of carbon dioxide concentration by plants Student activity Play

Relative atomic mass Student activity Play

Relative molecular mass Student activity Play

Representative values of chemical shifts Animation Play