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chemistry vocab
Question | Answer |
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mass | a measure of the amount of matter that an object contains |
volume | a measure of the space occupied by a sample of matter |
extensive property | a property that depends on the amount of matter in a sample ( volume and mass) |
intensive property | a property that depends on the type of matter in a sample, not the amount of matter (Absorbancy, make up of stuff) |
substance | matter that has a uniform and definite composition |
physical property | a quality or condition of a substance that can be observed or measured without changing the substance's composition |
solid | a from of matter that has a definite shape and volume |
liquid | a from of matter that has an indefinite shape, flows, yet has a fixed volume |
gas | a form of matter that takes both the shape and volume of its container |
vapor | describes the gaseous state of a substance that is generally a liquid or solid at room temperature |
physical change | some properties of material change but the composition of the material does not change |
mixture | a physical blend of two or more components |
heterogeneous mixture | the composition is not uniform throughout |
homogeneous mixture | the mixture is uniform throughout |
solution | a homogeneous mixture; consists of solutes dissolved ina solvent |
phase | used to describe any part of a sample with uniform composition and properties |
element | the simplest form of matter that has a unique set of properties |
compound | a substance that contains two or more elements chemically combined in a fixed proportion |
chemical change | a change that produces matter with a different composition that the original matter |
chemical symbol | a one or two letter representation of an element |