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21 Cards in this Set
- Front
- Back
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Mass |
A measure of the amount of matter in an object |
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Matter |
Anything that has mass and takes up space |
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Atom |
The smallest unit of an element that maintains the chemical properties of the element |
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Element |
A pure substance that cannot be broken down into simpler, stable substances and is made of one type of atom |
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Compound |
A substance that can be broken down into simple stable substances. Each compound is made from the atoms of two or more elements that are chemically bonded. |
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Extensive properties |
Properties that depend on the amount of matter present. (Volume, mass, energy) |
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Intensive properties |
Properties that DO NOT depend on the amount of matter present. |
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Physical property |
A characteristic that can be observed or measured without changing the identity of the substance |
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Physical change |
A change in a substance that does not involve a change in the identity of the substance |
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Solid |
Definite volume, definite shape |
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Liquid |
Definite volume, indefinite shape |
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Gas |
Indefinite volume, indefinite shape |
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Chemical property |
Property that relates to a substance's ability to undergo changes that tranform it into different substances |
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Chemical change/reaction |
A chnge in which one or more substances are converted into substances |
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Reactants |
The substances that react in a chemical change |
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Products |
The substances formed by the chemical change |
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Mixture |
A blend of two or more kinds of matter, each of which retains its own identites and properties |
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Homogenous |
Uniform in composition |
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Solutions |
Homogenous mixtures |
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Heterogenous |
Not uniform throughout |
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Pure substance |
Fixed composition |
