Oct 17, 2025 · A chemical element is any substance that cannot be decomposed into simpler substances by ordinary chemical processes. Elements are the fundamental materials of which …

Sep 26, 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.

Oct 10, 2025 · A chemical reaction is a process in which one or more substances, the reactants, are converted to one or more different substances, the products. Substances are either …

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

Sep 15, 2025 · Krypton (Kr), chemical element, a rare gas of Group 18 (noble gases) of the periodic table, which forms relatively few chemical compounds. About three times heavier than …

Sep 20, 2025 · Chemical formula, any of several kinds of expressions of the composition or structure of chemical compounds. The forms commonly encountered are empirical, molecular, …

Sep 12, 2025 · Chemical weapon, any of several chemical compounds, usually toxic agents, that are intended to kill, injure, or incapacitate. In modern warfare, chemical weapons were first …

Chemical equilibrium is the condition in the course of a reversible chemical reaction in which no net change in the amounts of reactants and products occurs. A reversible chemical reaction is …

Sep 30, 2025 · My Chemical Romance, American alternative rock band credited with helping to popularize the emo style of music, a subgenre of punk rock fusing confessional lyrics and punk …

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.