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17 Cards in this Set
- Front
- Back
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What is Chemistry? |
The study of the properties and behavior of matter. |
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What is Matter? |
Anything that has mass and takes up space. |
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Atoms |
Building blocks of matter |
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Element |
Each is made of a unique kind of atom |
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Compound |
Made of two or more different kinds of elements |
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Property |
any characteristic that allows us to recognize a particular type of matter and to distinguish it from other types |
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Methods of Classification |
State of Matter Composition of Matter |
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3 States of Matter |
1. solid (ice) 2. liquid (water) 3. gas (vapor) |
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Pure Substance (substance) |
matter that has distinct properties and a composition that does not vary from sample to sample. (Ex. H2O, Aluminum Foil) all substances are either elements or compounds |
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Elements |
composed of only one type of atom. substances that cannot be decomposed into simpler substances. |
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Compound |
composed of two or more elements, they contain two or more atoms. substance which can be decomposed to simpler substances. |
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Composition of Compound |
Have a definite composition, which means the relative number of atoms of each element that makes of the compound is the same in any sample. |
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Mixture |
composed of more than one substance, therefore it contains various properties. |
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Two Types of Substances |
1. Element 2. Compound |
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Two Types of Mixtures |
1. Homogenous (uniform, one phase) 2. Heterogenous (not uniform, more than one phase) |
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Extensive Property |
Depends on the amount or magnitude of the substance present. (Ex. Volume, mass) |
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Intensive Property |
Independent of the amount of the substance that is present. (Ex. Density, boiling point, or color) |
