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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
Chemistry | Definition, Topics, Types, History, Facts | Britannica The identification of pure substances and the analysis of chemical mixtures enable all other chemical disciplines to flourish The importance of analytical chemistry has never been greater than it is today
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 energy - Kids | Britannica Kids | Homework Help People have invented ways to use the chemical energy of substances to power machines For example, the chemical energy inside the substances in a battery can be transformed into electrical energy to power a flashlight
chemical reaction - Students | Britannica Kids | Homework Help The substances in a chemical reaction may be chemical elements, molecules, or compounds The substances present at the start of a chemical reaction are called the reactants; the substances formed by the reaction are called the products
Chemical equilibrium | Definition, Equation, Facts | Britannica 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 one in which the products, as soon as they are formed, react to produce the original reactants
Adrenochrome | Description, Properties, History, Popular Culture . . . Adrenochrome, unstable chemical compound formed by the oxidation of epinephrine (also known as adrenaline) and having the chemical formula C9H9NO3 Its name is a combination of the words adrenaline, referring to its source, and chrome, referring to its having a colour (violet)
list of chemical elements - Encyclopedia 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