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Grade 8 Ch L-2 Vocab
Science Explorer Chemical Interactions Ch 2
Question | Answer |
---|---|
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 |