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Grade 8 Ch L-2 Vocab

Science Explorer Chemical Interactions Ch 2

catalyst a material that increases the rate of a reaction by lowering the activation energy
decomposition A chemical reaction that breaks down compounds into simpler products
precipitate A solid that forms from a solution during a chemical reaction
reactants A substance that enters into a chemical reaction
synthesis A chemical reaction in which two or more simple substances combine to form a new, more complex substance
concentration The amount of one material in a certain volume of another material
inhibitor a material that decreases the rate of a reaction
combustion A rapid reaction between oxygen and fuel that results in fire
activation energy The minimum amount of energy needed to get a chemical reaction started
replacement A reaction in which one element replaces another in a compound or when two elements in different compounds trade places
products a substance formed as a result of a chemical reaction
coefficient A number in front of a chemical formula in an equation that indicates how many molecules or atoms of each reactant and product are involved in a reaction
chemistry The study of the properties of matter and how matter changes
Created by: DawnSimpson