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22 Cards in this Set
- Front
- Back
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Chemistry
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The study of the nature, properties, and transformations of matter.
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Matter
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The physical material that makes up the universe; anything that has mass and occupies space.
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Property
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A characteristic useful for identifying a substance or object.
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Physical change
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A change that does not affect the chemical makeup of the substance or object.
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Chemical change
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A change in the chemical makeup of a substance.
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Solid
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A substance that has a definite shape and volume.
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Liquid
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A substance that has a definite volume but that changes shape to fill its container.
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Gas
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A substance that has neither a definite volume nor a definite shape.
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State of matter
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The physical state of a substance as a solid, liquid, or gas.
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Change of state
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The conversion of a substance from one state to another, for example, from a liquid to a gas.
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Pure substance
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A substance that has a uniform chemical composition throughout.
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Mixture
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A blend of two of more substances, each of which retains its chemical identity.
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Chemical compound
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A pure substance that can be broken down into simpler substances by chemical reactions.
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Reactant
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A starting substance that undergoes change during a chemical reaction.
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Product
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A substance formed as the result of a chemical reation.
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Chemical reaction
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A process in which the identity and composition of one or more substances are changed.
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Element
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A fundamental substance that can't be broken down chemically into any simpler substance.
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Chemical formula
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A notation for a chemical compound using element symbols and subcripts to show how many atoms of each element are present.
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Periodic Table
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A tabular format listing all known elements.
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Metal
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A malleable element with a lustrous appearance that is a good conductor of heat and electricity.
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Nonmetal
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An element that is a poor conductor of heat and electricity.
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Metalloid
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An element whose properties are intermediate between those of a metal and nonmetal.
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