| Term | Definition |
|---|
| chemistry | the study of matter and how it changes |
| matter | anything that occupies space and has mass |
| element | a substance that cannot be broken down into simpler substances |
| atom | the smallest paricle that has the properties on an element |
| compound | a substance made up of 2 or more elements that are bound together |
| molecule | the smallest unit of a substance that exhibits all of the properties characteristic of that substance |
| pure substance | any matter that has a fixed compostion and definite properties |
| mixture | a combinatio of more than one pure substance |
| miscible | describes 2 or more liquids that are able to dissolve into each other in various proportions |
| immiscible | describes 2 or more liquids that do not mix into each other |
| pressure | force exerted per unit area of a surface |
| viscosity | the resistance of a fluid to flow |
| energy | the ability to do work |
| sublimation | the change of a substance from a solid directly into a gas |
| chemical property | the way a substance reacts with others to form new substances with different properties |
| physical properties | a characteristic of a substance that can be observed or measured without changing the compositon of the substance |
| melting point | the temperature at which a solid turns into a liquid |
| boiling point | the temperature at which a liquid turns into a gas |
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