Term
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Definition
| a homogeneous mixture of two or more metals |
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Term
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Definition
| indivisible, spherical particles |
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Term
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Definition
| number that identifies a particular element |
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Term
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Definition
| composition of the sample changes in which there is a chemical change |
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Term
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Definition
| expresses the number of atoms of each element in a compound |
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Term
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Definition
| describes its chemical reactions with other substances |
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Term
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Definition
| Abbreviated name of each element |
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Term
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Definition
| predictable properties that can be broken down into elements by an ordinary chemical reaction |
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Term
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Definition
| a direct change of state from a gas to a solid |
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Term
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Definition
| If a metal can be drawn into a fine wire |
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Term
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Definition
| a substance that cannot be broken down further by a chemical reaction |
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Term
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Definition
| can be separated into pure substances by physical methods |
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Term
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Definition
| constant for a given sample |
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Term
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Definition
| the energy matter has a result of its motion |
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Term
| Law of Conservation of Energy |
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Definition
| energy can be converted from one form to another |
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Term
| Law of Conservation of Mass |
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Definition
| matter was neither created nor destroyed during a chemical reaction |
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Term
| Law of Conservation of Mass and Energy |
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Definition
| total mass and energy in the universe is constant |
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Term
| Law of Definite Composition |
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Definition
| Compounds always contain the same elements in a constant proportion by mass |
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Term
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Definition
| Metal that can be hammered into a thin sheet of foil |
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Term
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Definition
| element that is typically a solid, has bright metallic luster, a high density, a high melting point and is a good conductor of heat and electricity. |
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Term
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Definition
| a unit of matter composed of two or more nonmetal atoms |
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Term
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Definition
| an element that usually has a low density a low melting point and is a poor conductor of heat and electricity |
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Term
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Definition
| all the elements that have been arranged by atomic number and placed in a special chart |
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Term
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Definition
| chemical composition of the sample does not change |
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Term
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Definition
| those characteristics of a pure substance that we can observe without changing the composition of the substance |
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Term
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Definition
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Term
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Definition
| stored energy that matter possesses as a result of its position or composition |
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Term
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Definition
| an element that typically has properties midway between those of metals and nonmetals |
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Term
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Definition
| a direct change of state from a solid to a gas |
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Term
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Definition
| matter that has definite composition and constant properties |
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