1. 7 Elements

6. Every element has a unique set of properties

7. Characteristic Properties

8. Can you use: density, conductivity, reactivity, melting point to identify each element?

11. Elements MetalsNonmetalsMetalloids are divided into

12. Major Categories of Elements

15. Think/Pair/Share

16. 7 Compounds

18. Familiar Compounds

19. Compounds Have Unique Sets of Properties

21. Compounds Can Be Broken Down into Simpler Substances

23. Compounds Cannot Be Broken Down by Physical Changes

24. Think/Pair/Share

25. 7 Mixtures

29. Solutions

31. Salt Water

32. Examples of Different States in Solutions Gas in gasDry air (oxygen in nitrogen) Gas in liquidSoft drinks (carbon dioxide in water) Liquid in liquidAntifreeze (alcohol in water) Solid in liquidSalt water (salt in water) Solid in solidBrass (zinc in copper)

35. Concentration: How much solute is dissolved?

37. Math Break 35 g salt 175 mL water = 0.2 g/mL Calculate the concentration of Solution A which has 55 g of sugar dissolved in 500 mL of water.

38. Math Break 55 g sugar 500 mL water = 0.11 g/mL in Solution A 36 g sugar 144 mL water = 0.25 g/mL in Solution B  Which solution is the more dilute one?  Which is the more concentrated? Solution A Solution B

39. What affects how quickly solids dissolve in liquids?

40. Suspensions

41. Application

42. Biology Connection

43. Colloids

44. Think/Pair/Share