Chemical reaction - A process during which chemical bonds between atoms are broken and new ones are formed. Producing one or more different substances., reactant - the starting materials in a chemical reaction, product - the new substances that are formed in a chemical reaction, chemical equation - A representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products., coefficient - tells how many atoms, molecules, or formula units take part in a reaction, subscript - tells how many atoms of an element are contained in one molecule or formula unit., exothermic - energy is released, endothermic - energy is absorbed, balance - A condition in which different elements are equal or in the correct proportions. There are three types of visual balance: symmetry, asymmetry, and radial., combustion - a chemical reaction that occurs when a substance reacts with oxygen, releasing energy in the form of heat and light, synthesis - A chemical reaction in which two or more reactants combine to produce a single product., decomposition - A reaction in which a single compound breaks down to form two or more simpler substances, precipitate - A solid that forms from a solution during a chemical reaction., oxidation - A chemical change in which a substance combines with oxygen, as when iron oxidizes, forming rust, reduction - Any process in which electrons are added to an atom or ion (as by removing oxygen or adding hydrogen), catalyst - a substance that initiates or accelerates a chemical reaction without itself being affected, inhibitor - A material that decreases the rate of a reaction.,
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