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| a type of matter with a fixed composition |
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| substance in which all atoms are alike |
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| substance in which the atoms of two or more elements are combined in a fixed proportion |
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| a material made up of two or more substances that can easily be separated by physical means |
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| mixture in which different materials can be easily distinguished |
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| mixture containing two or more gaseous, liquid, or solid substances blended evenly throughout |
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| homogeneous mixture of particles so small that they are not seen and will never settle |
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| heterogeneous mixture with large particles that never settle |
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| scattering of light by colloidal particles |
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| heterogeneous mixture containing a liquid in which visible particles settle |
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| any characteristic of a material that you can observe without changing the identity of the substances that make up the material |
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| a change in size, shape, or state of matter |
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| the process for separating substances in a mixture by evaporating a liquid and recondensing its vapor |
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| characteristic of a substance that indicates whether it can undergo a certain chemical change |
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| change of one substance to another |
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| Law of conservation of mass |
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Definition
| the mass of all substances that are present before a chemical change equals the mass of all the substances that remain after the change |
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