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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
.027 m
B
2700 m
C
.27 m
D
270 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
3 dkg
C
300 dkg
D
.3 dkg
4) Round 24500 to 2 sig figs
A
25000
B
2.5
C
20000
D
25
5) Round 3230 to 1 sig fig
A
3
B
4000
C
3.00
D
3000
6) What is 9.2 + 8 + 5.23 =. Round to correct number of sig figs
A
22.43
B
22.4
C
20
D
22
7) 5.0 * 3.00 = ? Round to correct number of sig figs
A
15.0
B
10
C
15
D
20
8) What is 300,000,000 in scientific notation?
A
3.00 x 10^8
B
3.00 x 10^-8
C
3 x 10^8
D
3 x 10^-8
9) What is .000054 in scientific notation?
A
5 x 10^5
B
5.4 x 10^5
C
5 x 10^-5
D
5.4 x 10^-5
10) When multiplying numbers, how do you determine how you round?
A
Most number of decimal places
B
Least number of decimal places
C
Least number of significant figures
D
Most number of significant figures
11) When reading analog equipment, how many places out is your measurement?
A
The same as the major scale
B
The same as the minor scale
C
one digit further than the major scale
D
One digit further than the minor scale
12) I place a stone on the balance and get 423 g. How many significant figures is my measurement?
A
4
B
1
C
3
D
2
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
pound
B
gram
C
liter
D
meter
15) what is 2.9 * 9 = ? Round to the correct number of significant figures
A
26.1
B
20
C
26
D
30
16) How many significant figures does 12.00 have?
A
4
B
3
C
2
D
1
17) convert 1 mm into cm
A
100 cm
B
.01 cm
C
10 cm
D
.1 cm
18) 4.31 + 3.2 + 5.00
A
13
B
12.51
C
12.5
D
12
19) Convert .0000000085
A
8.5 x 10^8
B
85 x 10^10
C
8.5 x 10^9
D
.85 x 10^8
20) how many significant figures are there in .00250
A
4
B
2
C
3
D
5
*select an answer for all questions
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