Inks and food coloring are typically composed
of many different dyes which can be separated
by paper chromatography. Which of the
following terms apply to inks?
1. substance
2. homogenous
3. compound
4. element
5. heterogeneous
Which of the following separations cannot
be achieved using a physical process and,
therefore, requires a chemical process?
1. salt from sea water
2. water from honey
3. hydrogen from water
4. ice from water
5. fish from water
10
kL
km3
1000
10
hL
hm3
10
10
daL
L
dam3
1000
dL
m3
1000
Using the above diagram, 1
L is equivalent to
10
cL
dm3
1000
10
mL
cm3
1000
to
convert
mm3
1000
1.
1000 mL
2.
1000 cm3
3.
0.1 m3
4.
Both A and B
5.
All of the above
to
convert
10
kL
km3
1000
10
hL
hm3
10
daL
L
dam3
1000
Using the above
diagram, 1 mL is
equivalent to
10
dL
m3
1000
10
cL
dm3
1000
10
mL
cm3
1000
to
convert
mm3
1000
1.
1000 L
2.
1 x 10-6 m3
3.
100 mm3
4.
10 cL
5.
none of the above
to
convert
The volume of the cube to the right is
10.0 cm
1. 1.00 L
2. 100 mL
10.0 cm
3. 1.00 kL
4. 30 cm3
5. 1.00 dL
10.0 cm
The average density of a human brain
is 0.90 g cm-3. Which of the following is
the correct process to convert g cm-3 to
kg L-1?
g
1. 0.90
cm3
1000 kg
1g
1 cm 3
kg
= 0.90
1000 L
L
Portion of painting by Charles R. Knight
g
2. 0.90
cm 3
1 kg
1000 g
10 cm 3
kg
= 9.0 10-3
1L
L
g
3. 0.90
cm 3
1 kg
1000 g
1000 cm 3
kg
= 0.90
1L
L
The density of the earth is about 4 g ml-1.
Which of the following is the correct process
to convert g ml-1 to kg m-3?
g
1. 4
ml
1 kg
1000 g
1 106 ml
3 kg
=
4
10
1 m3
m3
g
ml
1 kg
1000 g
1000 ml
kg
=
4
1 m3
m3
g
ml
1000 kg
1g
2. 4
3. 4
1 ml
= 4 10
6
3
1 10 m
From NASA files
3
kg
m3
A Galileo thermometer functions based on the
dependence of density on temperature. Which of
the following statements is correct?
red
black
1. The yellow ball at the bottom is less dense
than the red ball on top.
2. The yellow ball is less dense than the liquid
in the cylinder.
3. The black ball at the top is more dense than
the blue ball on the bottom.
4. The black ball at the top is less dense than
the liquid in the cylinder.
yellow
blue
Which of the following expresses the result of the
following calculation with the correct number of
significant figures?
101.620 cm
32.45 cm
115.14 cm =
1. 3.796 x 105 cm
2. 3.7968 x 105 cm3
3. 3.797 x 105 cm3
4. 3.796 x 105 cm3
5. 3.8 x 105 cm3
Which of the following expresses the result of the
following calculation with the correct number of
significant figures and appropriate units?
1.522
g
cm3
8.1 cm3 =
1. 12.33 g
2. 12.3282 g cm3
3. 12.32 g cm
4. 12.0 g
5. 12 g
6
A 31.1 g stone is placed into a graduated cylinder and
displaces 10.2 mL of water. Without using a
calculator, an estimate for the density of the stone is
1. ~3000 g mL-1
2. ~300 g mL-1
3. ~30 g mL-1
4. ~3 g mL-1
5. ~0.3 g mL-1
Which of the following do you think
would be the best unit of measure to
express the height of the Eiffel tower.
1. centimeters
2. nanometers
3. gigameters
4. meters
5. kilometers