Chemistry Chapter 1 Vocabulary
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the study of the composition, structure, and properties of matter and the changes it undergoes | chemistry
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any substance that has a definite composition | chemical
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measure of the amount of matter | mass
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anything that has mass and takes up space | matter
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smallest unit of an element that maintains all the properties of that element | atom
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pure substance made up of only one kind of atom | element
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substance made from atoms of two or more elements that are chemically bonded | compound
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depends on the amount of matter that is present | extensive property
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does not depend on the amount of matter that is present | intensive property
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characteristic that can be observed or measured without changing the identity of the substance | physical property
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change in a substance that does not involve a change in the identity of the substance | physical change
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physical change of a substance from one state to another | change of state
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matter that has a definite shape and definite volume | solid
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matter that has a definite volumbe but no definite shape | liquid
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matter that has neither definite shape nor volume | gas
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high temperature state of matter in which atoms lose their electrons | plasma
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relates to a substance's ability to undergo changes that transform it into different substances | chemical property
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change in which one or more substances are converted into different substances | chemical change OR chemical reaction
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substances that react in a chemical change | reactants
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substances that are formed by the chemical change | products
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blend of two or more kinds of matter in which each retains its own identity and properties | mixture
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mixture that has uniform composition | homogeneous
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another name for a homogeneous mixture | solution
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mixtures that are not uniform throughout | heterogeneous
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has a fixed composition; all samples have the same characteristic properties AND have the same composition | pure substance
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vertical columns of the periodic table | groups OR families
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horizontal rows of elements in the periodic table | periods
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element that is a good conductor of heat and electricity | metal
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element that is a poor conductor of heat and electricity | nonmetal
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element that has some characteristics of metals and some characteristics of nonmetals | metalloid
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