1. Chapter 3 - Matter

2. mass takes up space A substance Examples: Table salt, water Solid Examples include wood, iron, paper, sugar Liquid Examples include water, blood, mercury Gas Vapor

3. composition Extensive Mass, length, volume Intensive Density – it is the same no matter how much you have

4. combinechange inability

5. Composition or identity melting freezing vaporization condensation sublimation deposition Dissolving

6. different electrons changereactants products 2H 2 + O 2 2H 2 O properties 2Na + Cl 2 2NaCl Odor, color change, gas, precipitate, temperature change, light Oh, Country Grandma’s Pies Taste Lovely

7. Law of Conservation of Mass closed mass

8. retains variable Heterogeneous phases pizzagranitesoup Homogeneous phase solution

9. Air in a scuba tank is primarily a mixture of nitrogen, oxygen, and argon gases Oxygen and carbon dioxide are dissolved in seawater Moist air exhaled by the scuba diver contains water droplets When it is raining, fresh water mixes with seawater Solid salts are divided in seawater The air tank is made of an alloy – a mixture of two metals

10. porous Distillation Crystallization Sublimationgas Chromatography density

11. chemicalphysical 90 Periodic Table namesymbol periods groupfamily

12. chemically Chemical reactions heat different Definite formula % H = 1/20 or 5% F = 19/20 or 95%

13. Multiple Element X = 3.5/14 25%Element Y = 10.5/14 75%