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34 Cards in this Set
- Front
- Back
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Atom |
The smallest partial of an element that still has characteristics of an element. |
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Molecule |
Two or more atoms bond together. |
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Mixture |
When two or more substances are together, but not bond to make a new substance. |
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Physical Properties |
A characteristic that can be observed using our five senses. |
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Group/Family |
Elements that have similar physical or chemical properties. |
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Mass |
The amount of matter in an object. |
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Condense |
When a gas becomes a liquid. |
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Precipitate |
A solid that is formed in a chemical reaction. |
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Electron |
The negative particle in a atom. |
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Compound (Molecule) |
Two or more DIFFERENT atoms bonded together. |
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Matter |
Anything that has mass and takes up space. |
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Volume |
The amount of space something takes up. |
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Density |
Compactness or how tightly packed something is. It can be calculated by dividing the mass of a substance by the volume of a substance. |
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Liquid |
A material with a definite volume BUT NO definite shape. |
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Solid |
A material with a definite shape and volume. |
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Gas |
A material that has no definite shape and volume. |
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Weight |
The amount of matter in an object. |
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Atomic Mass |
Average mass of an atom of a particular element. |
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Atomic Number |
The number of protons in an atom of a particular element. |
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Product |
The results in a experiment. |
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Reactant |
The parts of an experiment that causes a reaction. |
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Physical Change |
A Chang in the shape or how something looks but with no change in actual substance. |
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Evaporate |
When a liquid becomes a gas. |
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Nucleus |
The center of an atom that contains most of the mass of a atom. |
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Neutron |
The neutral particle in an atoms nucleus. |
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Proton |
The positive particle in an atoms nucleus. |
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Melting Point |
Temperature when solid becomes liquid. |
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Sublimation |
When a solid becomes a gas. |
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Chemical Property |
A characteristic that cannot be observed without changing the substance. |
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Element |
A basic substance that cannot be broken in other substances. |
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Bond |
To hold something together. |
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Freezing Point |
The temperature at which a liquid becomes a solid. |
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Law of Conservation of MASS |
The total that exist before chemical reaction will always equal the amount of mass present after the reaction. |
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Chemical Change |
A change in a substance that forms a new and different substance. |
