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Chapter 2 vocab
Words from chapter 2
| Term | Definition |
|---|---|
| Pure substance | matter that always has exactly the same composition; an element or compound |
| Elemant | a substance that can't 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 simpler substances |
| Heterogeneous Mixture | a type of mixture in which the parts of the mixture are noticeably different from one another |
| Homogeneous Mixture | a type of mixture in which the substances are so evenly distributed that it's difficult to distinguish one substance in the mixture from another |
| Solution | a mixture that forms when substances dissolve and form a homogeneous mixture |
| Suspension | a heterogeneous mixture that separates into layers over time |
| Colloid | a mixture that contains some particles that are intermediate in size between the small particles in a solution and the larger particles in a suspension |
| Physical Property | any characteristic of a material that can be observed or measured without |
| Viscosity | the tendency of a liquid to keep from flowing; resistance to flowing |
| Conductivity | a material's ability to allow heat or electric charges to flow |
| Malleability | an ability of a solid that can be hammered without shattering |
| Melting Point | the temperature at which a substance changes from a solid to a liquid |
| Boiling Point | the temperature at which a substance boils; the temperature at which water vapor pressure is equal to atmospheric pressure |
| Filtration | a process that separates materials based on their size of the particle |
| Distillation | a process that separates the substances in a solution based on their boiling points |
| Physical Change | a change that occurs when some properties of a material change, but the substances of the material stay the same |
| Chemical Property | any property that produces a change in the composition of matter |
| Flammability | the material ability to burn in the presence of oxygen |
| Reactivity | the property that describes how readily a substance combines chemically with other substances |
| Chemical Change | change that occurs when the substance reacts and forms one or more substances |
| Precipate | a solid that forms and separates from a liquid |
Created by:
michaela.querry
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