Chapter 2: Matter

2. The smallest unit of an element that maintains the chemical properties of that element
7. A substance that cannot be separated or broken down into simpler substances by chemical means
8. A substance made up of two or more chemical elements joined by chemical bonds
9. a combination of two or more substances that are not chemically combined
10. What do physical properties help determine
11. A sample of matter, either a single element of a single compound, that has definite
13. Elements are represented by what
16. change Some compound can be broken down through what type of change
17. What can gases mix with

1. point The temperature and pressure at which a liquid and a gas are in equilibrium
3. substances What do chemical changes form
4. The capacity of a substance to combine chemical with another substance
5. Anything that has mass that takes up space
6. A group of atoms that are held together by chemical forces
11. What type of change is dissolving
12. Chemical formulas represent what
14. the ratio of the mass of a substance to the volume of the substance; commonly expressed as grams per cubic centimeter for solids and liquids and as grams per liter for gases
15. point the temperature and pressure at which a solid becomes a liquid