Encyclopedia  |   World Factbook  |   World Flags  |   Reference Tables  |   List of Lists     
   Academic Disciplines  |   Historical Timeline  |   Themed Timelines  |   Biographies  |   How-Tos     
Sponsor by The Tattoo Collection
Chemical
Main Page | See live article | Alphabetical index

Chemical

A chemical is a either a chemical element or a material with a defined composition of such elements: a chemical compound. The term is often used to refer to bulk material, rather than to individual microscopic or submicroscopic particles, e.g., "A chemical is a specific collection of atoms or molecules."

See also: chemistry, chemical industry, molecule, mixture.