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WorksheetsReview Units 1-5
Total questions: 59
Worksheet time: 29mins
Name
Class
Date
1.
To separate a mixture of soil and water what separation method is used?
a)
Filtration
b)
Distillation
c)
Chromatography
d)
Evaporation
2.
To separate a mixture of salt and water what separation method is used?
a)
Filtration
b)
Distillation
c)
Chromatography
d)
Evaporation
3.
NaCl is a
a)
Mixture
b)
Compound
4.
Name the separation method that causes wet clothes on a clothes line to dry
a)
Chromatography
b)
Filtration
c)
Distillation
d)
Evaporation
5.
What filtration method is used when draining pasta
a)
Chromatography
b)
Distillation
c)
Filtration
d)
Evaporation
6.
Potting Soil is an example of
a)
mixture of solids
b)
solute
c)
element
d)
Compound
7.
An aluminum pie plate is an example of:
a)
mixture of solids
b)
solute
c)
element
d)
Compound
8.
Calcium carbonate is an example of:
a)
suspension
b)
compound
c)
alloy
d)
Mixture
9.
Boiling point,melting point, and density are some of an element's
a)
pure properties
b)
physical properties
c)
chemical properties
10.
An element's ability to react with acid is an example of a
a)
physical property
b)
melting point
c)
chemical property
11.
When two or more elements join together chemically,
a)
a mixture is formed
b)
nothing is formed
c)
a compound is formed
12.
A nugget of gold is an example of:
a)
compound
b)
element
c)
solution
13.
All _________are either metals, metalloids, or nonmetals.
a)
metals
b)
metalloids
c)
elements
d)
Compounds
14.
Mixtures are separated through ___________changes.
a)
mixture
b)
compound
c)
physical
15.
How can a compound be broken down?
a)
by crushing
b)
by chemical means
c)
by physical means
16.
What is the formula for density?
a)
density = mass x volume
b)
density = mass / volume
c)
density = mass + volume
d)
density = mass - volume
17.
Density is...
a)
the amount of mass in an object
b)
the amount of space an object takes up
c)
the amount of mass in a given space
d)
the weight of an object
18.
What units can be used to express density?
a)
g/mL
b)
grams
c)
millimeters
d)
milliliters
19.
If an object has a density of 3.6 g/mL and you put it into water, will it sink or float?
a)
sink
b)
float
20.
If an object has a density of .6 g/mL and you put it into water, will it sink or float?
a)
sink
b)
float
21.
Which liquid is the most dense?
a)
oil
b)
water
c)
syrup
d)
plastic bottle
22.
Frank has a paper clip. It has a mass of 9g and a volume of 3cm3. What is its density?
a)
3 g/cm3
b)
1/3 g/cm3
c)
27 g/cm3
d)
39 g/cm3
23.
Which box has a higher density?
a)
Box A
b)
Box B
c)
cannot be determined
d)
they are the same
24.
Coffee is an example of what type of mixture?
a)
homogeneous
b)
heterogeneous
25.
A heterogeneous mixture is ________ mixed.
a)
evenly
b)
unevenly
26.
Chicken noodle soup is an example of what type of mixture?
a)
homogeneous
b)
heterogeneous
27.
The law of conservation of mass states that mass cannot be
a)
heated or cooled
b)
created or destroyed
c)
changed in form
d)
burned
28.
Matter is defined as anything that
a)
contains kinetic or potential energy
b)
can be seen and touched
c)
has mass and takes up space
d)
can be weighed
29.
Which of the following is not an example of a chemical property?
a)
reactivity
b)
boiling point
c)
freezing point
d)
density
30.
This is an example of a
a)
mixture of two compounds
b)
pure substance
c)
mixture of two elements
d)
mixture of element and compound
31.
What is condensation?
a)
gas to solid
b)
gas to liquid
c)
liquid to solid
d)
solid to liquid
32.
Molecules are closest together in a
a)
Solid
b)
Liquid
c)
Gas
33.
The state of matter that has no definite size or shape is
a)
Solid
b)
Liquid
c)
Gas
34.
Which shows a gas, where particles are moving, spreading out, and filling the space available?
a)
State A
b)
State B
c)
State C
d)
None
35.
In which state are the particles least able to move? (Which is the solid?)
a)
State A
b)
State B
c)
State C
d)
None
36.
______________________ takes place when a liquid changes to a solid.
a)
freezing
b)
melting
c)
boiling
d)
sublimation
37.
What is vaporization?
a)
a gas becoming a liquid
b)
a liquid becoming a solid
c)
a gas becoming a solid
d)
a liquid becoming a gas
38.
In which state of matter do the particles spread apart and fill all the space available to them?
a)
crystal
b)
liquid
c)
gas
d)
solid
39.
The resistance of a liquid to flowing is its
a)
pressure.
b)
temperature.
c)
viscosity.
d)
volume.
40.
The surface of water can act like a sort of skin due to a property of liquids called
a)
viscosity.
b)
surface tension.
c)
condensation.
d)
evaporation.
41.
Which of the following occurs when a liquid becomes a gas?
a)
the particles slow down
b)
the particles beak away from one another
c)
the particles move closer together
42.
Which changes of state are endothermic changes?
a)
freezing and evaporation
b)
evaporation and melting
43.
Which changes of state are exothermic changes?
a)
condensation and freezing
b)
melting and evaporation
44.
The reverse of condensation is
a)
sublimation
b)
evaporatio
c)
boiling
45.
_________________ are the elements and compounds that enter into a chemical reaction.
a)
Polymers
b)
Bonds
c)
Reactants
d)
Products
46.
Which of the following is a chemical change rather than a physical change
a)
boiling water at 100 C
b)
chopping up a piece of wood.
c)
cooking a cake
d)
ice carbon dioxide sublimating to gas
47.
The number of atoms of oxygen in
Cu(NO3)2 is ...
Cu(NO3)2 is ...
a)
2
b)
5
c)
6
d)
zero
48.
a copper penny turning greenish after a few years.
a)
Chemical Change
b)
Physical Change
49.
The density of a particular substance:
a)
depends on the volume
b)
is always the same
c)
depends on the mass
d)
is always changing
50.
What is the amount of space an object takes up?
a)
density
b)
mass
c)
matter
d)
volume
51.
To balance a chemical equation, it may be necessary to adjust the
a)
Coefficients
b)
Subscripts
c)
Formulas of the products
d)
Number of products
52.
How many protons are in an atom with an atomic number of 20, an atomic mass of 45, and a charge of +2?
a)
20
b)
10
c)
2
d)
18
53.
What particle provided the positive charge for an atom?
a)
proton
b)
neutron
c)
electron
d)
nucleus
54.
Which particle only contributes to the mass of an atom?
a)
Proton
b)
Neutron
c)
Electron
d)
Nucleus
55.
Which particle does not contribute mass to the atom?
a)
Proton
b)
Neutron
c)
Electron
d)
Nucleus
56.
Which particle contributes the negative charge to the atom?
a)
proton
b)
electron
c)
neutron
d)
nucleus
57.
How many protons will an atom have it it has 23 electrons and a charge of +3?
a)
23
b)
26
c)
20
d)
3
58.
Mendeleev arranged the known chemical elements in a table according to increasing...
a)
atomic number
b)
number of electrons
c)
number of protons
d)
mass
59.
The atomic mass of a single atom is
a)
the sum of the protons and neutrons in the atom.
b)
twice the number of protons in one atom of the element.
c)
a ratio based on the mass of a carbon-12 atom.
d)
a weighted average of the masses of the element’s isotopes.
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