Semester 1 Final Review
1. Billy Bob wanted to study the impact of different temperatures on the rate of growth of
heirloom tomato plants. Identify the following:
a. Independent Variable:
__________________________________________________
b. Dependent Variable:
___________________________________________________
c. Control:
_____________________________________________________________
d. Constants:
__________________________________________________________________
_________________________________________________________________
e. Provide a possible hypothesis:
__________________________________________________________________
__________________________________________________________________
2. Based on your answers to question 4, if you were to graph the data from this experiment,
which
a. variable would be placed on the x-axis and which variable would be placed on the
y-axis?
b. x-axis: ____________________________
c. y-axis:_____________________________
Directions: Sig fig. How MANY present?
3. 675
_______
4. 708
_______
5. 700000909
_______
Directions: Write in scientific notation.
6. 44553432
_______
7. 1000008000
_______
8. 0.00000809
_______
9.
Directions: Sig Fig. Write these IN significant figures. (hint hint maybe using sci notation???)
10. 4 sig fig= 3546473
_______
11. 3 sig fig= 65476
_______
12. 1 sig fig=6750
_______
Directions: Density.
13. 32 g/cm2, 4g
14. 12 g, 6cm2
15. 100g/cm2, 50g
Directions: Present Error.
16. Measured=40g
Calculated= 34g
17. Measured=0.98g
Calculated=0.95g
Directions: Dimensional Analysis. See page 38 of text for conversion factors. (must show work
neatly or will not count)
18. Given=26ft convert to centimeters (cm)
19. Given=3627364cm convert to miles (mi)
Directions: Dimensional Analysis. 1quark=36sips 1sip=5gulks
20. Given 2 gulks convert to quark
1fam=24quarks
21. Given 46 sip convert to fam
Directions: Atomic Structure
22. Fill in the chart:
Subatomic
particles
Location in the
atom
Mass (amu)
Charge
Size (compare to
the others)
23. Fill in the chart
Symbol
75
As3-
Atomic #
Mass #
# Protons
45
# Neutron
56
126
53
# Electrons
43
53
222
Rn
24. Fill in the chart.
Particle
ALPHA
BETA
POSITRON
Symbol
Explain why stabilizes the nucleus
25. What does a half life mean?
26. Finish the decay: 22698Ra  22286Rn + ______
27. 23892U + 10n  ____ + 0-1e
28. Calculate the weighted average atomic mass for nitrogen: 95% N-14, 3% N-15, 2% N-16.
Directions: 1/2 life:
29. the mass of cobalt-60 in a sample was found to decrease from 0.8 to 0.2 in a period of
10.5 hours. Calculate the half life of this isotope.
30. The half-life of 232Th is 1.4x1010 years. If there are 25.0 g of the ample left after 2.8x1010
years, how many grams were in the original sample?
31. label wavelength, amplitude, increasing Frequency/Energy
Directions: long hand configuration
32. H:
33. Al:
Directions: short hand configuration
34. Al:
35. Ba:
Directions: What is the number of valence electrons?
36. N:
37. Cl:
Directions: Electron Configuration
38. B:
39. Ba:
Directions: Lewis Dot structure For:
40. O:
41. P:
Directions: fill in the chart
42. Maximum number of electrons in the sub levels?
Sublevel
Max Electron
___
___
___
___
___
___
___
___
43. Orbitals in the sublevels?
Sublevel
# of orbitals
___
___
___
___
___
___
___
___
Directions: Relationship between these
44. Frequency and wavelength AND Frequency and energy
Directions: Light Equations
Use:
c=v
E=hv
45. wavelength of 2.58 x10-9 m. what is it's frequency?
46. What is the energy given off from a frequency of 4.55 x109 Hz
Directions: Describe the Direction that these are increasing on the periodic table.
47. Atomic Radii:
48. Ionization energy:
49. Electronegativity:
50. Electron affinity:
Oxidation numbers
51. Na
52. Fe (II)
53. F
54. S
_______
_______
_______
_______
Directions: Please write the formula unit OR chemical formula. (make sure they appear in the
correct order.
55. Na and Cl
_______
56. C and 2 O
_______
57. Fe (III) and N
_______
Directions: Please draw the molecular compound from the following bonds:
58. CO2
59. CH4
60. I2
Directions: Use the graph to answer the questions below.
61. Please identify what is missing from this graph?
62. What are the Dependent and Independent variables?
Other Concepts to know for the final:
-Scientists
-Measuring
- Lab equipment
-Safety Rules
-Accuracy and Precision
-Classification of elements on Periodic Table (ie metals….ect)
STUDY ALL STUDY GUIDES FROM THIS QUARTER!! B