Chapter 2 Vocabulary
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28 terms
Terms | Definitions |
|---|---|
 Mass | a measure of the amount of matter an object contains |
| Volume | a measure of the space occupied by the object |
| Extensive Property | A property that depends on the amount of matter in a sample |
| Intensive Property | A property that depends on the type of matter in a sample |
| 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 form of matter that has definite shape and volume |
| Liquid | A form of matter that has indefinite shape, yet has a fixed volume |
| Gas | A form of matter that takes both the shape and volume of its container |
| Vapor | the gaseous state of a substance that is generally a liquid or solid at room temperature |
| Physical Change | A change where some properties of a material change, but the composition of the material does not change. |
| Mixture | A physical blend of two or more components |
| Heterogeneous Mixture | A mixture in which composition is not uniform throughout |
| Homogeneous Mixture | A mixture in which the composition is uniform throughout |
| Solution | a homogenous mixture |
| Phase | Any part of a sample with uniform composition and properties |
| Filtration | The process that separates a solid from the liquid in a heterogeneous mixture. |
| Distillation | A liquid is boiled to produce a vapor that is then condensed into a liquid |
| 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 than the original matter |
| Chemical Symbol | A symbol used to represent each element |
| Chemical Property | The ability of a substance to undergo a specific chemical change |
| Chemical Reaction | One or more substances change into one or more new substances |
| Reactant | A substances present at the start of the reaction |
| Product | A substance produced in the reaction |
| Precipitate | A solid that forms and settles out of a liquid mixture |
| Law of Conservation of Mass | In any physical change or chemical reaction, mass is neither created nor destroyed. |
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