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elements, compounds and mixtures

Total questions: 79

Worksheet time: 3hrs 31mins

Name
Class
Date
1.

Iced tea is what kind of mixture?

a)

Homogeneous

b)

Heterogeneous

c)

Both homogeneous and heterogenous

d)

None of the above

2.
Can an element be broken down into a simpler substance 
a)
yes 
b)
No
3.
Are there any compounds on the periodic table 
a)
yes there are many 
b)
no because only elements are on the periodic table
c)
I think they are?
4.
Is salt (NaCI) a compound or a element
a)
Compound
b)
element
5.
which one can be found on the periodic table
a)
Compound 
b)
Element
6.
Which of the following an element?
a)
Carbonic Acid
b)
Copper
c)
Iron and Copper
d)
Water
7.
What is made up two or more elements that are chemically combined?
a)
Element
b)
Mixture
c)
Compound
d)
Solids
8.
What cannot be broken down into other substances?
a)
Compound
b)
Mixture
c)
Solids
d)
Element
9.
Which of the following represents an element?
a)
H2O
b)
H2
c)
NaCl
d)
CaCO3
10.
Which of the following is not a compound?
a)
HCl
b)
Cl
c)
NaCl
d)
CO2
11.
Water is an example of:
a)
compound
b)
element
c)
solution
12.
A combination of substances that are not chemically combined is called a(n)____________. 
a)
mixture
b)
compound
c)
physical
13.
This picture represents which of the following?
a)
element
b)
compound
c)
mixture
14.
This picture represents which of the following?
a)
element
b)
compound
c)
mixture
15.
This picture represents which of the following?
a)
element
b)
compound
c)
mixture
16.
Classify the picture with the correct label.
a)
Element
b)
Compound
c)
Mixture of Elements
d)
Mixture of Compounds
17.
Classify the picture with the correct label.
a)
Element
b)
Compound
c)
Mixture of Elements and Compounds
d)
Mixture of Elements
18.
Classify the picture with the correct label.
a)
Compounds
b)
Mixture of Elements
c)
Mixture of Compounds
d)
Mixture of Elements & Compounds
19.
Classify the picture with the correct label.
a)
Element
b)
Compound
c)
Mixture of Compounds
d)
Mixture of Elements
20.
Classify the picture with the correct label.
a)
Compound
b)
Mixture of Compounds
c)
Mixture of Elements & Compounds
d)
Mixture of Elements
21.
Classify the picture with the correct label.
a)
Element
b)
Compound
c)
Mixture of Elements & Compounds
d)
Mixture of Elements
22.
Classify the picture with the correct label.
a)
Mixture of Elements
b)
Mixture of Elements & Compounds
c)
Mixture of Compounds
d)
Compounds
23.
which one only has one type of atom In it.
a)
Element
b)
compound
24.
What cannot be broken down into other substances?
a)
Compound
b)
Mixture
c)
Solids
d)
Element
25.
These can only be separated by chemical means. 
a)
element 
b)
compound 
c)
mixture 
d)
stuff 
26.

The air we breathe is a _________.

a)

element

b)

mixture

c)

compound

d)

energy

27.
Water is a ___________. 
a)
element 
b)
mixture 
c)
compound 
28.

The components in a mixture always retain their........

a)

smell properties

b)

physical and chemical properties

c)

shape

d)

color

29.
Elements can be broken down into simpler substances. 
a)
false 
b)
true 
c)
sometimes 
30.
Compounds contain a _____ set of elements.
a)
fixed
b)
random 
c)
sweet 
d)
inaccurate 
31.
Concrete is a ______.
a)
mixture 
b)
compound 
c)
element 
32.
Milk is a ________
a)
compound 
b)
mixture 
c)
element 
33.
Salt is a _________. 
a)
compound 
b)
element 
c)
mixture 
34.
This can be separated physically. 
a)
mixture 
b)
element 
c)
compound 
35.

Carbon Dioxide (CO2) is a ______

a)

compound

b)

element

c)

mixtures

d)

Battle of Bunker Hill

36.
Sand at the beach is a _______. 
a)
homogeneous mixture 
b)
heterogeneous mixture 
c)
compound 
d)
element 
37.

All compounds have a specific ratio of elements

a)

True

b)

False

c)

Neither

38.

The smallest component of an element is a(n)

a)

compound

b)

molecule

c)

atom

d)

proton

39.

The smallest component of a compound is a(n)

a)

compound

b)

molecule

c)

atom

d)

proton

40.

The three types of mixtures are..

a)

solutions, solutes, solvents

b)

solutions, colloids, suspensions

c)

solutions, colloids, sediments

d)

concentrates, dilutes, dissolvers

41.

If a substance is soluble is means...

a)

that it can dissolve into another substance

b)

that it cannot dissolve into another substance

c)

it must be a concentrated substance

d)

it must be a diluted substance

42.

An example of an insoluble substance would be..

a)

salt in water

b)

chocolate power in milk

c)

sugar in water

d)

oil in water

43.

Which is the most common type of mixutre

a)

solutions

b)

solutes

c)

colloids

d)

suspensions

44.

Solutions are made up of..

a)

a soluble and a solvent

b)

a solute and a solvent

c)

a suspension and a sediment

d)

a suspension and a colloid

45.

The word concentrated means a mixture is..

a)

weak

b)

strong

c)

disappearing

d)

reappearing

46.

If a mixture is concentrated is means..

a)

there is a large amount of colloid

b)

there is no solute in the mixture

c)

there is a large amount of solvent and a small amount of solute

d)

there is a large amount of solute and a small amount of solvent

47.

A mixture is dilute is means the mixture is..

a)

weak

b)

strong

c)

disappearing

d)

reappearing

48.

If you wish to dilute a mixture you can..

a)

add more solute

b)

add more solution

c)

add more solvent

d)

add more sediment

49.

Solutions have ______________ sized particles, colloids have _________________ sized particles, and suspensions have _________________________ sized particles.

a)

small, medium, large

b)

large, medium, small

c)

medium, small, large

d)

medium, large, small

50.
Which of the following is a pure substance? 
a)
Soil 
b)
Salt
c)
Water and sand
d)
Vanilla ice cream with chocolate
51.

Classify this object.

a)

Element

b)

Compound

c)

Heterogeneous mixture

d)

Homogeneous Mixture

52.

Classify this object

a)

Element

b)

Compound

c)

Heterogeneous Mixture

d)

Homogeneous Mixture

53.

Aluminum is a(n)

a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

54.
Lucky Charms
a)
Element
b)
Compound
c)
Homogeneous Mixture
d)
Heterogeneous Mixture
55.
NaCl
a)
Element
b)
Compound
c)
Homogeneous Mixture
d)
Heterogeneous Mixture
56.
A mixture in which 2 liquids are mixed so evenly that it is not possible to see the separate particles 
a)
Solute 
b)
Solution
c)
Solvent 
d)
Suspension 
57.
This type of mixture has particles that settle. 
a)
Suspension
b)
Colloid 
c)
Emulsion
d)
Solution 
58.

This type of mixture can look cloudy or gel like and has moderate sized particles that are suspended but do not settle out

a)

Suspension

b)

Solute

c)

Colloid

d)

Solvent

59.
A homogeneous mixture
a)
Is not uniform 
b)
Is uniform 
60.
A heterogeneous mixture
a)
Is not uniform 
b)
Is uniform 
61.
The parts of a homogeneous mixture are   __________ throughout. 
a)
Same 
b)
Different 
c)
Neutral 
d)
Suspended 
62.
A pure substance
a)
Can always be separated 
b)
Can be separated physically
c)
Cannot be separated physically
63.

Sugar water lets light pass through, and is a homogeneous mixture

a)

solution

b)

suspension

c)

colloid

64.
Sand floating in water, but most of the sand is settled at the bottom this an example of which type of mixture?
a)
A solution
b)
A colloid
c)
A suspension
d)
A compound
65.
Two classifications of a pure substance are
a)
homogeneous and heterogeneous
b)
atoms and elements
c)
elements and compounds
d)
solutions and colloids
66.
Letter A is the...
a)
Solute
b)
Solvent
67.
Letter B is the...
a)
Solute
b)
Solvent
68.
What substance is known as the “universal solvent?” 
a)
Oil
b)
Air
c)
Water
d)
Salt
69.
How are suspensions and colloids different?
a)
Suspensions settle out and colloids do not settle.
b)
Colloids settle out and suspensions do not settle.
c)
Suspensions dissolve and colloids do not.
d)
Colloids dissolve and suspensions do not.
70.
All are heterogeneous mixtures except...
a)
Italian dressing
b)
Sandy water
c)
Cereal and milk
d)
Salt water
71.
Two or more substances mingled together, but not chemically combined are known as a
a)
residue
b)
solution
c)
distillate
d)
mixture
72.
What type of mixture is this?
a)
heterogeneous 
b)
homogeneous
73.
Elements and compounds are always ___.
a)
pure
b)
mixed
74.

Mixtures are ___.

a)

pure

b)

not pure

75.
Which mixture separation method would use to sort trail mix?
a)
filtration 
b)
magnet
c)
boiling/evaporation
d)
sorting physically
76.
This is a type of heterogeneous mixture in which the particles are dispersed and do not settle out.
a)
alloy
b)
solution
c)
suspension
d)
colloid
77.

Sandy ocean water can be separated by first separating the solids from the liquids through ________. Then separating the remaining solution by ______________:

a)

evaporation ; filtration

b)

distillation ; decanting

c)

filtration ; evaporation

d)

filtration ; decanting

78.
Which one of the following would you use to separate sand from iron filings?
a)
a bar magnet
b)
filter paper
c)
chromatography paper
d)
alum
79.
Water and alcohol are easily separated by distillation because of their
a)
 different melting points
b)
different colours
c)
different densities
d)
different boiling points

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