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Unit 1 Review - Matter
Test Description: Matter
Instructions: Answer all questions to get your test result.
1) Which of the following is an example of a heterogeneous mixture?
A
Sodium chloride
B
Air
C
Bromine
D
OJ with pulp
2) Which of the following is a physical change?
A
A pot of water evaporating.
B
A wooden log burning.
C
Two clear solutions forming a milky white solid.
D
Rust forming on a bicycle.
3) Which of the following is NOT an indicator of a chemical reaction?
A
An odor is produced
B
Color change
C
Bubbles are produced
D
Formation of a precipitate
4) Which of the following is NOT an intensive property of matter?
A
Color
B
Volume
C
Melting Point
D
Density
5) Which of the following is the SI base unit for length?
A
meter
B
yard
C
kilogram
D
centimeter
6) What is the purpose of using sig figs?
A
To calculate the density of a substance.
B
To determine how precise a measurement can be.
C
To determine if a measuring tool is usable.
D
To annoy all chemistry students.
7) How many sig figs are in the following measurement: 0.023000 mL?
A
5
B
3
C
2
D
6
8) How many sig figs are in the following measurement: 100.05 g?
A
2
B
3
C
4
D
5
9) If a block measures 5 x 5.0 x 4.66 m, how many sig figs can its calculated volume contain?
A
1
B
2
C
4
D
3
10) If I perform the following: 10.0 mL - 1.777 mL, how should I write the final answer?
A
8 mL
B
8.223 mL
C
8.2 mL
D
8.22 mL
*select an answer for all questions
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