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WorksheetsPure Substances and Mixtures
Total questions: 53
Worksheet time: 2hrs 46mins
Name
Class
Date
1.
A pure substance...
a)
is an element or a compound
b)
is an element or a mixture
c)
is a compound or a mixture
d)
is a mixture
2.
Which of the following represents an element?
a)
H2O
b)
H2
c)
NaCl
d)
CaCO3
3.
Which of the following is not a compound?
a)
HCl
b)
Cl
c)
NaCl
d)
CO2
4.
Salt has a chemical formula of NaCl. Salt is a...
a)
Compound
b)
Element
c)
Mixture
d)
None of the Above
5.
What cannot be broken down into other substances?
a)
Compound
b)
Mixture
c)
Solids
d)
Element
6.
What is made up two or more elements that are chemically combined?
a)
Element
b)
Mixture
c)
Compound
d)
Solids
7.
How many elements are represented in the compound?
Na2CO3
Na2CO3
a)
1
b)
2
c)
3
d)
4
8.
A combination of substances that are not chemically combined is called a(n)____________.
a)
mixture
b)
compound
c)
physical
9.
An element is made up of only one kind of _____.
a)
isotope
b)
plastic
c)
atom
d)
metal
10.
Examples are milk and gasoline.
a)
elements
b)
mixtures
c)
compounds
11.
What is salad?
a)
element
b)
compound
c)
mixture
12.
Classify the picture with the correct label.
a)
Element
b)
Compound
c)
Mixture of Elements
d)
Mixture of Compounds
13.
Classify the picture with the correct label.
a)
Element
b)
Compound
c)
Mixture of Elements and Compounds
d)
Mixture of Elements
14.
Classify the picture with the correct label.
a)
Element
b)
Compound
c)
Mixture of Elements & Compounds
d)
Mixture of Compounds
15.
Classify the picture with the correct label.
a)
Compounds
b)
Mixture of Elements
c)
Mixture of Compounds
d)
Mixture of Elements & Compounds
16.
Classify the picture with the correct label.
a)
Mixture of Elements
b)
Compound
c)
Mixture of Compounds
d)
Element
17.
Classify the picture with the correct label.
a)
Element
b)
Compound
c)
Mixture of Compounds
d)
Mixture of Elements
18.
Classify the picture with the correct label.
a)
Mixture of Compounds
b)
Mixture of Elements
c)
Compound
d)
Mixture of Elements & Compounds
19.
Carbon is a(n) ______
a)
compound
b)
element
c)
mixture
20.
Carbon Dioxide is a ______
a)
compound
b)
element
c)
mixtures
d)
Battle of Bunker Hill
21.
Salt is a _________.
a)
compound
b)
element
c)
mixture
22.
Milk is a ________
a)
compound
b)
mixture
c)
element
23.
Glucose (C6H12O6) contains atoms of carbon, hydrogen, and oxygen that are chemically bonded together. What type of matter is glucose?
a)
Glucose is an element
b)
Glucose is a compound
c)
Glucose is a mixture
d)
Glucose is a metal
24.
The smallest particle of any element that still has the properties of that element is called
a)
an atom
b)
a compound
c)
a solution
d)
a mixture
25.
What does the diagram show?
a)
A mixture of two elements
b)
A pure compound
c)
A mixture of two compounds
d)
A mixture of a compound & element
26.
What does the diagram show?
a)
A mixture of two elements
b)
A pure compound
c)
A mixture of two compounds
d)
A mixture of a compound & element
27.
What does the diagram show?
a)
A mixture of two elements
b)
A pure compound
c)
A mixture of two compounds
d)
A mixture of a compound & element
28.
What does the diagram show?
a)
A mixture of two elements
b)
A pure compound
c)
A mixture of two compounds
d)
A mixture of a compound & element
29.
Which description below is a true statement about the diagram?
a)
The diagram can be classified as an element and a molecule
b)
The diagram can be classified as a compound
c)
The diagram can be classified as a mixture of two compounds
d)
The diagram can be classified as a mixture of two elements
30.
Which statement below is TRUE about compounds?
a)
The properties of compounds are totally different than the properties of the elements that form them
b)
All compounds are listed on the Periodic Table of Elements
c)
A compound is a pure substance that is made from one type of atom
d)
The properties of compounds are the same as the properties of the elements that form them
31.
A pure substance that is made from one type of atom is a(n) ______________ .
a)
Mixture
b)
Atom
c)
Element
d)
Compound
32.
Classify Sulfuric Acid (H2SO4) as an element or compound.
a)
Element
b)
Compound
33.
Classify Sulfur (S) as an element or compound.
a)
Element
b)
Compound
34.
Classify Phosphorus (P) as an element or compound.
a)
Element
b)
Compound
35.
Classify Sodium Chloride (NaCl) as an element or compound.
a)
Element
b)
Compound
36.
How many TOTAL atoms make up the molecule 8K2SO4?
a)
8
b)
56
c)
7
d)
15
37.
TRUE OR FALSE:
There are millions of elements.
There are millions of elements.
a)
True
b)
False
38.
TRUE OR FALSE:
There are millions of compounds.
There are millions of compounds.
a)
True
b)
False
39.
TRUE OR FALSE:
There are about 118 elements.
There are about 118 elements.
a)
True
b)
False
40.
TRUE OR FALSE:
There are about 118 compounds.
There are about 118 compounds.
a)
True
b)
False
41.
TRUE OR FALSE:
Water is an element.
Water is an element.
a)
True
b)
False
42.
TRUE OR FALSE:
Water is a compound.
Water is a compound.
a)
True
b)
False
43.
Each ball shown in the diagram represents a type of atom. Balls of the same shade and size represent the same kind of atom. Which diagram shows a mixture?
a)
1
b)
2
c)
3
d)
4
44.
Granite forms when magma cools slowly, deep underground, into large crystals composed of the minerals quartz, feldspar, and mica. How would granite be classified?
a)
compound
b)
mixture
c)
solution
d)
element
45.
Which of the following is a pure substance?
a)
Water
b)
Salad
c)
Chocolate milk
d)
All of them
46.
Which of the following is a pure substance?
a)
Soil
b)
Salt
c)
Water and sand
d)
Vanilla ice cream with chocolate
47.
A substance made from different kinds of atoms chemically combined is a(an)...
a)
element
b)
molecule
c)
compound
d)
mixture
48.
A substance with the same kind of atom throughout is a(an)...
a)
element
b)
molecule
c)
compound
d)
mixture
49.
Describe this sample
a)
Pure compound
b)
Mixture of elements
c)
Mixture of compounds
d)
Mixture of elements and compounds
50.
Describe this sample
a)
Pure element
b)
Pure compound
c)
Mixture of elements
d)
Mixture of compounds
51.
Identify this particle of matter.
a)
Molecule only
b)
Compound only
c)
Molecule and Compound
d)
Mixture only
52.
What is this?
a)
element
b)
compound
c)
mixture
53.
What is this?
a)
element
b)
compound
c)
mixture
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