1. Chem II

2. Seating Chart

3. Distribute Syllabus

4. The Syllabus & all Power Point Presentations are attached to Poly’s Website.

5. All homework assignments will be assigned to Poly’s Website.

6. Policy Dress code violations, which cannot be rectified, are to be sent directly to the GLA

7. Policy Electronic devices, other than calculators, are to be confiscated & sent directly to the GLA

8. Policy Electronic devices that have been confiscated will only be returned to a guardian.

9. Pull out your notebooks as class begins on the next slide

10. To be successful in chemistry, you must be competent in algebra.

11. Solve for Y AB CDE X Y =

12. Solve for Y ABY CDEX =

13. Solve for Y Y CDEX AB =

14. Scientific Method

15. A systematic method for performing research

16. Scientific Method Observing Hypothesizing Experimenting Analyzing

17. Hypothesis

18. An educated guess

19. Variables

20. Anything that changes or can be changed in an experiment

21. Independent Variable

22. The variable that is changed by the person doing the experiment

23. Dependent Variable

24. A variable that changes due the effects of the independent variable being changed

25. Scientific Law

26. Any fact that has been proven beyond any doubt

27. Scientific Theory

28. An idea that is supported by much scientific data and is accepted by the scientific community as correct, but cannot be proven

29. Problem Solving

30. What do you have? Identify what’s given List the variables

31. What do you want? Identify what’s being asked for Identify the problem

32. How do you get it? Identify a formula or an algorithm that can be used to solve the problem

33. Chemistry The study of matter

34. Matter Anything that: takes up space has mass has inertia

35. Mass The measure of the amount of matter

36. Types of Matter Pure: one kind of substance Mixture: 2 or more substances

37. Substance A specific type of matter

38. Pure Substances Elements Compounds

39. Element Any pure substance that contains only one kind of atom

40. Compound A pure substance made up of 2 or more elements chemically combined

41. Mixture A Physical blend of substances

42. Mixture Each part retains its properties

43. Mixture Mixtures can be separated by physical means

44. Mixtures Heterogeneous Homogenous

45. Heterogeneous Mixture Made up of multiple phases Non-uniform

46. Phase Any physically separate part of a substance

47. Interface Where two phases come together

48. Homogeneous Mixture Made up of only one phase Uniform throughout

49. Solution Homogeneous mixture

50. Solute Any of the lesser portions of a solution What has been dissolved

51. Solvent The larger portion of a solution What is doing the dissolving

52. CHM II HW Review PP 1 – 4 that are attached to Poly’s website Work the attached HW problem

53. Separating Mixtures Filtration Distillation Precipitation Chromatography

54. Filtration Separation by size Passing through pores

55. Distillation Separation by differences in B.P. Boil & collect

56. Precipitation Separation by differences in solubility Allow solutions to ppt

57. Chromatography Separation through charge or polarity differences Separating ink on paper

58. Classify each of the following as: Pure: element or compound Mixture: hetero. or homo

59. Air, water, mud, the sea, aluminum, orange juice, brass, gold

60. List and describe all types of pure substances

61. List and describe all types of mixtures