1. Chapter 2 “Matter and Change”

10. States of Matter Solid Liquid Gas Definite Volume? YES YES NO Definite Shape? YES NO NO Result of a TemperatureIncrease? Small Expans. Small Expans. Large Expans. Will it Compress? NO NO YES

11. 4 th state: Plasma - formed at high temperatures; ionized phase of matter as found in the sun

12. Three Main Phases – page 41

13. Solid Liquid Gas Melt Evaporate Condense Freeze

14. Copper Phases - Solid

15. Copper Phases - Liquid

16. Copper Phases – Vapor (gas)

25. Separation of a Mixture Components of dyes such as ink may be separated by paper chromatography .

26. Separation of a Mixture Distillation: takes advantage of different boiling points. NaCl boils at 1415 o C

32. Compound vs. Mixture Compound Mixture Made of one kind of material Made of more than one kind of material Made by a chemical change Made by a physical change Definite composition Variable composition

33. Which is it? Element Compound Mixture

35. Chemical Change A change in which one or more substances are converted into different substances. Heat and light are often evidence of a chemical change.

37. Classification of Matter

46. - Page 55 reactants = product 43.43 g Original mass = 43.43 g Final mass

47. End of Chapter 2 Matter and Change