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Chapter 15 KaceyJ PS
Question | Answer |
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element or compound that cannot be broken down into simpler components and maintain the properties of the original substance | substance |
substance with atoms that are alike | element |
substance formed from two or more elements in which the exact combination and proportion of element is always the same | compound |
mixture, such as mixed nuts or a dry soup mix, in which different materials are unevenly distributed and are easily identified | heterogeneous mixture |
solid, liquid, or gas that contains two or more substances blended evenly throughout | homogeneous mixture |
homogeneous mixture that remains constantly and uniformly mixed and has particles that are so small they cannot be seen with a microscope | solution |
heterogeneous mixture whose particles never settle | colloid |
scattering of a light beam as it passes through a colloid | Tydall effect |
heterogeneous mixture containing a liquid in which visible particles settle | suspension |
any characteristic of a material , such as size or shape, that you can observe or attempt to ovserve without changing the identity of the material | physical property |
any change in size, shape, or state of matter in which the identity of the substance remains the same | physical change |
process than can separate two substances in a mixture by evaporating a liquid and recondensing its vapor | distillation |
any characteristic of a substance, such as flammability, that indicates whether it can undergo a certain chemical change | chemical property |
change of one substance into a new substance | chemical change |
states that the mass of all substances present before a chemical change equals the mass of all the substances remaining after the change | law of conservation of mass |