chapter 11

4. the chemical symbols and numbers indicating the atoms contained in the basic unit of a substance
7. any matter that has a fixed composition and definite properties
8. describes 2 or more liquids that are able to dissolve into each other in various portions
9. the ability to change or move matter
10. a substance that cannot be broken down into simpler substances
12. a change in the composition byforming one or more new substances.
13. a change in physical form but not in composition
17. a characteristic of a substance that can be observed or measured without changing the composition of the substance
18. is anything that has mass and occupies space
19. substances are not uniformly mixed

1. the smallest unit of a substance that exhibits all of the properties characteristic of that substance
2. describes 2 or more liquids that do not mix into each other
3. mixing occurs between individual units
5. a combination of more than one pure substance
6. the way a substance reacts with others to form new substances with different properties
11. the mass per unit volume
14. the smallest particle that has the properties of an element
15. a substance made of atoms of more than one element bound together
16. the force exerted per unit area of a surface