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chemistry vocab
Stack #68595
| Question | Answer |
|---|---|
| Matter | anything that has mass and takes up space, stuff |
| Chemistry | the study of the properties of matter and how matter changes |
| Substance | a single kind of matter that's pure, and has a unique set of properties |
| Pure Substance | a substance at it's purest, simplest form |
| Non- Pure Substance | a substance that has been made from mutiple pure substances |
| Physical Properties | characteristics of a pure substance that describes its ability to change into different substances |
| Element | A pure substance that cannot be broken down into any other substances by chemical or physical means |
| Atom | the basic particle from which all elements are made |
| Chemical Bond | an attraction between two atoms |
| Molecules | groups of two or more atoms held together by chemical bonds |
| Compound | a pure substance made up of two or more elements chemically combined in a set ratio |
| Chemical Formula | shows the elements in the compound and the ratio of atoms |
| Mixture | made up of two substances from elements, compounds, or both |
| Homogeneous Mixture | when you cannot see the mixture physically |
| Heterogeneous Mixture | when you can see parts of the mixture |