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Chemistry
Chapter 2 vocab
| Question | Answer |
|---|---|
| Mass | the amount of matter that an object contains |
| Volume | an measure of the space occupied by an object |
| Extensive property | depends on the amount of matter in a sample |
| Intensive property | depends on the type of matter in a sample |
| Substance | matter that has a uniform and definite composition |
| Physical property | a quality of a substance that can be observed without changing the substance's composition |
| Solid | matter that has a definite shape and volume |
| Liquid | matter that has a definite volume and takes the shape of its container |
| Gas | matter that takes both shape and volume of its container |
| Vapor | gaseous state of a substance that generally exists as a liquid or solid at room temperature |
| Physical change | a change to a material that does not change its composition |
| Mixture | a physical blend of two or more components |
| Heterogeneous mixture | a mixture that is not uniform in composition |
| Homogeneous mixture | a mixture that has a uniform composition throughout |
| Solution | another name for homogeneous mixture |
| Phase | alters a substance without changing its composition |
| Filtration | a method for separating a solid from a liquid in a heterogeneous mixture |
| Distillation | separation of a liquid by boiling followed by condensation |
| Element | the simplest form of matter with a unique set of properties |
| Compound | 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 | one or two letters that represent an element |
| Chemical property | ability of a substance to undergo a specific chemical change |
| Chemical reaction | process in which one or more substances change into one or more new substances |
| Reactant | a part of a sample with uniform composition and properties |
| Product | substance formed in a chemical reaction |
| Precipitate | solid that forms and settles out of a liquid mixture |
| Law of conservation mass | in any physical change or chemical reaction, mass can be neither created nor destroyed |
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VKimbrell718
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