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14 Cards in this Set
- Front
- Back
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chemical change
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occurs when 1 or more substances are changed into entirely new substances with different properties
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chemical equation
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description that uses chemical formulas to describe a chemical reaction
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chemical formula
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uses chemical symbols and numbers to represent a substance
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chemical reaction
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process by which 1 or more substances change to produce 1 or more different substances
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chemical symbol
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way to represent the name of an element (iron is Fe)
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coefficient
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a number placed in front of a chemical symbol or formula
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compound
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a pure substance composed of 2 or more elements that are chemically combined
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endothermic
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term used to describe a physical or chemical change in which energy is absorbed
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exothermic
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term used to describe a physical or chemical change in which energy is given off
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physical change
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change that effects 1 or more physical properties of a substance
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precipitate
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a solid formed in a solution as a result of a chemical reaction
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products
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substance formed from a chemical reaction
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reactant
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starting material in a chemical reaction
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subscript
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number written below and to the right of a chemical symbol in a formula
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