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WorksheetsChem Unit 1: Safety, Measurement and Matter
Total questions: 54
Worksheet time: 45mins
Name
Class
Date
1.
How many significant figures does the following number have: 0.002040
a)
6
b)
4
c)
3
d)
2
2.
How many significant figures does the following number have: 0.002040
a)
6
b)
4
c)
3
d)
2
3.
How many significant figures does the following number have: 0.998005
a)
9
b)
10
c)
6
d)
5
4.
How many significant figures does the following number have: 100
a)
4
b)
3
c)
2
d)
1
5.
Round 1009 to three sig figs
a)
100
b)
101
c)
1010
d)
1000
6.
Round 1047.78 to three sig figs
a)
104
b)
105
c)
1050
d)
1050.00
7.
What is 298.907 rounded to 1 significant figure?
a)
298.9
b)
290
c)
300
d)
298.91
8.
Calculate 5.50 cm + 5.5 cm and give your answer with the appropriate number of significant figures.
a)
11 cm
b)
11.0 cm
c)
11.00 cm
d)
11.000 cm
9.
Calculate 345.009 g - 23.009 g and give your answer with the appropriate number of significant figures.
a)
322.00 g
b)
322 g
c)
322.000 g
d)
322
10.
When performing the calculation 34.530 g + 12.1 g + 1222.34 g the final answer must have
a)
Three significant figures
b)
One decimal place
c)
Two decimal places
d)
Two significant figures
11.
Calculate 1.23 m x 0.89 m and give your answer with the appropriate number of significant figures.
a)
1.0 m2
b)
1.1 m2
c)
1.0947 m2
d)
1.09 m2
12.
Calculate 923 g ÷ 20312 cm3 and give your answer with the appropriate number of significant figures.
a)
0.04 g/cm3
b)
0.045 g/cm3
c)
0.0454 g/cm3
d)
4 x 10-2 g/cm3
13.
Calculate 0.020 cm x 50 cm x 11.1 cm and give your answer with the appropriate number of significant figures.
a)
10 cm3
b)
11.1 cm3
c)
11 cm3
d)
11. cm3
14.
The amount of space something takes up is called:
a)
density
b)
volume
c)
mass
d)
matter
15.
The gram is a unit commonly used for which of the following?
a)
volume
b)
length
c)
mass
d)
density
16.
What formula is used to find the volume of a cube?
a)
mass/volume
b)
volume/mass
c)
mass x volume
d)
length x width x height
17.
What is the volume of a rectangular block that has a length of 2.5 cm, a width of 2.5 cm and a height of 1.5 cm? (make sure your answer has the correct # of sig figs)
a)
3.125 cm3
b)
3.1 cm3
c)
3.1 cm
d)
3 cm3
18.
What is the formula for density?
a)
volume/mass
b)
mass/volume
c)
volume x mass
d)
length x width x height
19.
What is the density of a rock with a mass of 3.6 grams and a volume of 2.0 cm3?
a)
7.2 g/cm3
b)
1.8 g/cm3
c)
.55 g/cm3
d)
1.8 cm3/g
20.
Which piece of equipment would be best for measuring out 35 mL of water?
a)
graduated cylinder
b)
triple beam balance
c)
pipette
d)
metric ruler
21.
Which piece of lab equipment would be used to measure out 16 grams of salt?
a)
graduated cylinder
b)
beaker
c)
triple beam balance
d)
test tube
22.
What is measurement a?
a)
5 cm
b)
5.0 cm
c)
0.5 cm
d)
0.50 cm
23.
What is measurement e?
a)
8 cm
b)
8.28 cm
c)
8.3 cm
d)
8.289 cm
24.
Which of the following is a correct unit of density?
a)
g
b)
mL
c)
g/mL
d)
mL/g
25.
The milliliter (mL) is a unit used to measure:
a)
Length
b)
Mass
c)
Volume
d)
Density
26.
Color, density and melting point are all examples of:
a)
Chemical Properties
b)
Physical Properties
c)
States of Mass
d)
Scientific Matterology
27.
When iron and oxygen combine, rust is formed. This is an example of a:
a)
physical change
b)
chemical change
c)
mass change
d)
volume change
28.
2 or more elements chemically bond to form a(n):
a)
atom
b)
molecule
c)
compound
d)
mixture
29.
Sucrose (C6H12O11) is an example of a(n):
a)
Element
b)
Compound
c)
Homogeneous Mixture
d)
Heterogeneous Mixture
30.
Helium (He) is an example of a(n):
a)
Element
b)
Compound
c)
Homogeneous Mixture
d)
Heterogeneous Mixture
31.
Oil and water is an example of a(n):
a)
Element
b)
Compound
c)
Homogeneous Mixture
d)
Heterogeneous Mixture
32.
Salt dissolved in water is an example of a(n):
a)
Element
b)
Compound
c)
Homogeneous Mixture
d)
Heterogeneous Mixture
33.
This type of substance can only be separated by chemical means.
a)
element
b)
mixture
c)
compound
34.
This picture represents which of the following?
a)
element
b)
compound
c)
mixture
35.
This picture represents which of the following?
a)
element
b)
compound
c)
mixture
36.
A mixture that appears to be evenly mixed throughout is called:
a)
an element
b)
a compound
c)
a homogeneous mixture
d)
a heterogeneous mixture
37.
What is this?
a)
Measuring tube
b)
Test tube
c)
Graduated Cylinder
d)
Pipette
38.
What instrument should be used if the lab directions ask you to measure to the nearest milliliter?
a)
graduated cylinder
b)
triple beam balance
c)
Erlenmeyer flask
d)
meter stick
39.
What is this called?
a)
Beaker
b)
Erlenmeyer Flask
c)
Test Tube
d)
Graduated Cylinder
40.
What is this called?
a)
Beaker
b)
Flask
c)
Test Tube
d)
Graduated Cylinder
41.
What does this measure?
a)
Volume
b)
Mass
c)
Temperature
d)
Length
42.
What is the volume of the blue liquid?
a)
6.6 mL
b)
6.60mL
c)
6.06 mL
d)
6.70 mL
43.
What is this piece of lab equipment called?
a)
Beaker
b)
Flask
c)
Bunsen Burner
d)
Lighter
44.
What is this muppet's name?
a)
Beaker
b)
Mr. Experiment
c)
Dr. Tester
d)
Mr. Science
45.
What is this piece of lab equipment called?
a)
beaker
b)
erlenmeyer flask
c)
crucible
d)
ring stand
46.
What is this piece of lab equipment called?
a)
beaker
b)
graduated cylinder
c)
test tube
d)
erlenmeyer flask
47.
What is this piece of lab equipment called?
a)
test tube clamp
b)
tongs
c)
ring stand
d)
buret clamp
48.
Can a mixture be separated?
a)
No
b)
Yes
c)
Only sometimes
49.
Which one of the following is the name for separation technique in the picture below
a)
distillation
b)
seiving
c)
evaporation
d)
decanting
50.
Water and alcohol are easily separated by distillation because of their
a)
different densities
b)
different boiling points
c)
different colours
d)
different melting points
51.
Which of these is NOT a pure substance?
a)
elements
b)
compounds
c)
mixtures
d)
they are all pure substances
52.
Filtration can be used to separate...
a)
an insoluble solid from a solution
b)
a soluble solid from a solution
c)
a dissolved solid from a solution
53.
Evaporation can be used to separate...
a)
an insoluble solid from a solution
b)
a soluble solid from a solution
c)
a dissolved solid from a solution
54.
What separation technique is shown in this diagram?
a)
evaporation
b)
filtration
c)
distillation
d)
chromatography
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