Dec 16, 2025 · All the matter in the universe is composed of the atoms of more than 100 different chemical elements, which are found both in pure form and combined in chemical compounds.

CHEMICAL meaning: 1 : of or relating to chemistry; 2 : working by means of chemicals

Dec 26, 2025 · Cooking, fermentation, glass making, and metallurgy are all chemical processes that date from the beginnings of civilization. Today, vinyl, Teflon, liquid crystals, semiconductors, and …

4 days ago · Substances are either chemical elements or compounds. A chemical reaction rearranges the constituent atoms of the reactants to create different substances as products.

Dec 27, 2025 · Nitric oxide, colourless toxic gas that has important chemical signaling functions in animals and is a serious air pollutant.

Dow Inc. (formerly Dow Chemical Company) is an American chemical and plastics manufacturer that is one of the world’s leading suppliers of chemicals, plastics, and sealants.

Chemical formula, any of several kinds of expressions of the composition or structure of chemical compounds. The forms commonly encountered are empirical, molecular, structural, and projection …

Chemical castration differs from surgical castration in that it is reversible and its effects typically stop when the drugs are ceased. Chemical castration is used in the treatment of certain types of cancer, …

Jan 11, 1971 · The Chemical Brothers, a British deejay-producer duo who pioneered the big beat dance music genre in the 1990s with such singles as ‘Chemical Beats,’ ‘Block Rockin’ Beats,’ ‘Loops of …

Jan 8, 2026 · As a chemical term, “sugar” usually refers to all carbohydrates of the general formula C n (H 2 O) n. Sucrose is a disaccharide, or double sugar, being composed of one molecule of glucose …