Describing Matter

1. a single kind of matter that is pure and has a specific set of properties
3. shows the elements in the compound and the ratio of atoms
9. two or more substances that are together in the same place but are not chemically combined
10. substances in mixture are so evenly mixed that the different parts cannot be seen
13. the basic particle of an element
14. a property can be observed without changing a substance into another substance
15. different parts in the mixture can be seen

2. a force of attraction between two atoms
4. a property that describes the ability of a substance to change into a different substance
5. two or more atoms held together by chemical bonds
6. Anything that has mass and takes up space
7. a pure substance that cannot be broken down into any other substance by chemical or physical means
8. a pure substance made of two or more elements chemically combined in a set ration
11. an example of a homogeneous mixture
12. the study of the properties of matter and how matter changes