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1. 1 
2. 2 Chapter 2 Measurements in Chemistry 
3. 3 
4. 4 Using an  instrument to determine data about the  physical property of an object is a measurement. 
5. 5 
6. 6 Measurements are reported with a number and a unit. 
7. 7 Physical Properties  
8. 8 Three Important Physical Properties and the Metric System Base Units 
9. 9 Name the base unit for eachphysical property.  
10. 10 
11. 11 
12. 12 Be sure  you know the metric system prefixes 
13. 13 Metric System Prefixes 
14. 14 Exact versus Inexact Numbers 
15. 15 Exact numbers can either be counted or  they are defined as a standard reference.Inexact numbers are associated with numbers obtained from measurements. 
16. 16 
17. 17 
18. 18 Significant Figures 
19. 19 
20. 20 Significant Figures 
21. 21 Significant Figures 
22. 22 Significant Figures 
23. 23 The Digit Zero 
24. 24 Fig. 2.6
The digital readout on an 
electronic calculator usually
shows more digits than are needed. Significant Figures 
25. 25 
26. 26 
27. 27 
28. 28 
29. 29 
30. 30 
31. 31 
32. 32 
33. 33 Conversion Factors 
34. 34 
35. 35 
36. 36 
37. 37 
38. 38 
39. 39 Conversion Factors: Summary 
40. 40 Conversion Factors: Summary 
41. 41 Conversion Factors: Summary 
42. 42 Conversion Factors: Summary 
43. 43 Conversion Factors: Summary 
44. 44 Figure: 09-07
Title:
solutions containing electrolytes conduct electricity
Caption:
A simple demonstration to show that electricity can flow through a solution of ions.
Notes:
(a)  With pure water in the beaker, the circuit is incomplete, no electricity flows, and the bulb does not light.  (b)  With a concentrated NaCl solution in the beaker, the circuit is complete, electricity flows, and the light bulb glows.
Figure: 09-07
Title:
solutions containing electrolytes conduct electricity
Caption:
A simple demonstration to show that electricity can flow through a solution of ions.
Notes:
(a)  With pure water in the beaker, the circuit is incomplete, no electricity flows, and the bulb does not light.  (b)  With a concentrated NaCl solution in the beaker, the circuit is complete, electricity flows, and the light bulb glows.
 
45. 45 
46. 46 
47. 47 
48. 48 
49. 49 Density of Selected Substances  
50. 50 
51. 51 
52. 52 
53. 53 
54. 54 Temperature Scales 
55. 55 Temperature Scales 
56. 56 
57. 57 Specific Heat 
58. 58 Table 2.4 
					 
59. 59 
60. 60 
61. 61 
62. 62