Main Page | See live article | Alphabetical index


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.

This is a disambiguation page; that is, one that just points to other pages that might otherwise have the same name. If you followed a link here, you might want to go back and fix the link, so that it points to the appropriate page.