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Test Description: Review for Quiz in Chemistry
Instructions: Answer all questions to get your test result.
1) convert 27 mm into m
A
2700 m
B
.27 m
C
270 m
D
.027 m
2) Convert 7 kL into L
A
7000 L
B
.7 L
C
.07 L
D
700 L
3) Convert 30 hg into dkg
A
300 dkg
B
300 dkg
C
3 dkg
D
.3 dkg
4) Round 24500 to 2 sig figs
A
2.5
B
20000
C
25
D
25000
5) Round 3230 to 1 sig fig
A
4000
B
3
C
3000
D
3.00
6) What is 9.2 + 8 + 5.23 =. Round to correct number of sig figs
A
22.43
B
20
C
22.4
D
22
7) 5.0 * 3.00 = ? Round to correct number of sig figs
A
15.0
B
15
C
10
D
20
8) What is 300,000,000 in scientific notation?
A
3.00 x 10^-8
B
3 x 10^8
C
3.00 x 10^8
D
3 x 10^-8
9) What is .000054 in scientific notation?
A
5.4 x 10^-5
B
5.4 x 10^5
C
5 x 10^5
D
5 x 10^-5
10) When multiplying numbers, how do you determine how you round?
A
Most number of significant figures
B
Least number of decimal places
C
Least number of significant figures
D
Most number of decimal places
11) When reading analog equipment, how many places out is your measurement?
A
one digit further than the major scale
B
The same as the minor scale
C
One digit further than the minor scale
D
The same as the major scale
12) I place a stone on the balance and get 423 g. How many significant figures is my measurement?
A
2
B
4
C
3
D
1
13) convert 16.2 cm into m
A
162 m
B
.162 m
C
.0162 m
D
1620 m
14) Which of these isn't a metric unit?
A
gram
B
liter
C
pound
D
meter
15) what is 2.9 * 9 = ? Round to the correct number of significant figures
A
20
B
26
C
30
D
26.1
16) How many significant figures does 12.00 have?
A
3
B
4
C
2
D
1
17) convert 1 mm into cm
A
10 cm
B
.01 cm
C
.1 cm
D
100 cm
18) 4.31 + 3.2 + 5.00
A
12.51
B
12
C
13
D
12.5
19) Convert .0000000085
A
.85 x 10^8
B
85 x 10^10
C
8.5 x 10^9
D
8.5 x 10^8
20) how many significant figures are there in .00250
A
2
B
3
C
5
D
4
*select an answer for all questions
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