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Definition
| Matter with uniform and unchanging composition. |
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| Characteristic observable without changing composition. |
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Definition
| Dependent upon amount of substance. ex: mass, volume, length. |
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| Independent of the amount of substance. ex: density. |
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Definition
| Ability of substance to combine with or change into another substance. |
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Definition
| Matter with definite shape and volume. |
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Definition
| Definite volume, takes shape of container |
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| No definite shape or volume, fills entire volume of container. |
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Definition
| Gaseous state of a substance that is solid or liquid at room temperature. |
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Definition
| Changes that alter a substance but not its composition. |
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Definition
| Process that involves one or more substances changing into new substances. |
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Term
| Law of Conservation of Mass |
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Definition
| Mass can not be created or destroyed during a chemical reaction. |
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Definition
| A mixture is a combination of >1 pure substances that retain their individual chemical properties. |
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Definition
| Individual substances remain intact, not a smooth blend. |
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Definition
| Constant composition throughout. |
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Definition
| technique that uses a porous barrier to seperate a solid from a liquid. |
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Definition
| separation based on different boiling points of substances. |
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Definition
| separation technique that results in the formation of pure solid particles of a substance from a solution. |
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Definition
| Separation technique that separates components of a mixture on their tendency to travel the surface of another material. |
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Definition
| pure substance that cannot be separated into simpler substances. |
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Term
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Definition
| Organized table of the elements. |
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Term
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Definition
| combination of two or more different elements combined chemically. |
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Term
| Law of Definite Proportions |
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Definition
| regardless of amount, a compound is always composed of the same elements in the same proportion by mass. |
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Term
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Definition
Ratio of elemental mass to total mass.
Percent by mass = (mass of element/mass of compound) *100 |
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Term
| Law of Multiple Proportions |
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Definition
| When compounds are formed by a combination of the same elements, different masses of one element combined with the same relative mass of the other result in different compounds. |
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