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15 Cards in this Set
- Front
- Back
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What is Matter?
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The physical material that makes up the universe; anything that has mass and occupies space
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What is Chemistry?
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The study of the nature, properties, and transformations of matter
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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 a 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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Change of state
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The conversion of a substance from one state to another--for example, from liquid to a gas
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solid
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Has a definite volume and a definite shape that does not change regardless of the container in which it is placed.
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liquid
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Has a definite volume but an indefinite shape
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gas
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*Has neither a definite volume nor a definite shape
*Takes shape and volume of vessel |
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What are the three states of matter?
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The physical state of a substance as a solid, liquid, or 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 or more substances, each of which retains its chemical identity
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Element
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A fundamental substance that cannot be broken down chemically into any simpler substance
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Chemical compound
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A pure substance that can be broken down into a 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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