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Chemistry | Definition, Topics, Types, History, Facts | Britannica Cooking, fermentation, glass making, and metallurgy are all chemical processes that date from the beginnings of civilization Today, vinyl, Teflon, liquid crystals, semiconductors, and superconductors represent the fruits of chemical technology
Chemical industry | Overview, Importance, History | Britannica Chemical industry, complex of processes, operations, and organizations engaged in the manufacture of chemicals and their derivatives Raw materials include fossil fuels and inorganic chemicals
Chemical weapon | History, Facts, Types, Effects | Britannica 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 used in World War I (1914–18)
Chemical kinetics | Definition, Equations, Facts | Britannica The detailed mechanism by which a chemical process occurs is referred to as the reaction path, or pathway The vast amount of work done in chemical kinetics has led to the conclusion that some chemical reactions go in a single step; these are known as elementary reactions
Gold | Facts, Properties, Uses | Britannica gold (Au), chemical element, a dense lustrous yellow precious metal of Group 11 (Ib), Period 6, of the periodic table of the elements Gold has several qualities that have made it exceptionally valuable throughout history
Chemical bonding | Definition, Types, Examples | Britannica This article begins by describing the historical evolution of the current understanding of chemical bonding and then discusses how modern theories of the formation of chemical bonds have emerged and developed into a powerful description of the structure of matter