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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 element | Definition, Origins, Distribution, Facts - Britannica A chemical element is any substance that cannot be decomposed into simpler substances by ordinary chemical processes Elements are the fundamental materials of which all matter is composed Learn more about the origins, distribution, and characteristics of chemical elements in this article
Chemical formula | Definition, Types, Examples, Facts | Britannica 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 formulas
Chemical energy | Definition Facts | Britannica The chemical energy in food is converted by the body into mechanical energy and heat The chemical energy in coal is converted into electrical energy at a power plant The chemical energy in a battery can also supply electrical power by means of electrolysis
Chemical weapon - WMD, Toxins, Agents | Britannica Chemical weapon - WMD, Toxins, Agents: Chemical weapons did not become true weapons of mass destruction (WMD) until they were introduced in their modern form in World War I (1914–18)
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
The Chemical Brothers | Members, Career, Music, Facts | Britannica 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 Fury,’ and ‘Setting Son ’