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Chapter 2 Vocabulary
Chapter 2 vocabulary f
| Term | Definition |
|---|---|
| Pure Substance | Matter that always has exactly the same composition |
| Element | A substance that cannot be broken down into simpler substances |
| Atom | The smallest particle of an element |
| Compound | A substance that is made from two or more simpler substances and can be broken down into those simpler substances |
| Heterogeneous Mixture | The parts of a mixture are noticeably different from one another |
| Homogeneous Mixture | A type of mixture in which the substances are so evenly distributed that it is difficult to distinguish one substance from another |
| Solution | The mixture that forms when substances dissolve and form a homogeneous mixture |
| Suspension | A heterogeneous mixture that seperates into layers |
| Colloid | Contains some particles that are intermediate in size between the small particles in a solution and the larger particles in a solution. |
| Physical Property | Any characteristic of a material that can be observed or measured without changing the composition of the substances in the material. |
| Viscosity | A Liquids resistance to flowing |
| Conductivity | A Materials ability to allow heat to flow |
| Malleability | The ability of a solid to be hammered without shattering |
| Melting point | The temperature at which a substance changes from solid to liquid |
| Boiling point | The Temperature at which a substance boils |
| Filtration | A process that seperate materials based on the size of their particles. |
| Distillation | A Process that seperates the substance in a solution based on their booing points |
| Physical change | Occurs when some of the properties of a material change but the substances in the material stay the same |
| Chemical property | Any ability to produce a change in the composition of matter. |
| Flammability | A materials ability to burn in the presence of oxygen. |
| Reactivity | How readily a substance combines chemically with other substances. |
| Chemical Change | Occurs when a substance reacts and forms one or more new substances. |
| Precipitate | Solid that forms and separates from a liquid mixture. |