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Element and Compound

Total questions: 35

Worksheet time: 13mins

Name
Class
Date
1.

What is gold, Au?

a)

element

b)

compound

c)

mixture

2.

What is sugar, C12H22O11?

a)

element

b)

compound

c)

mixture

3.

What is water, H2O?

a)

element

b)

compound

c)

mixture

4.
Which one can be found on the periodic table?
a)
Compound 
b)
Element
5.

Which statement best describes an element?

a)

made from mixture

b)

thousands in the world

c)

made of only one atom

d)

can be separated

6.
Which one has more than one type of atom in it?
a)
Element
b)
Compound 
7.
Carbon is considered an element while carbon dioxide is considered a compound. This is because carbon dioxide is –
a)
a gas at room temperature.
b)
made of two different elements.
c)
given off by green plants.
8.
Compounds are different than elements because compounds are -
a)
A combination of two or more elements.
b)

B)not able to be broken down into parts
c)
made from the same type of atoms
d)
a pure substance, elements are not
9.
This picture represents which of the following?
a)
element
b)
compound
c)
mixture
10.
This picture represents which of the following?
a)
element
b)
compound
c)
mixture
11.
What is krypton?
a)
element
b)
compound
c)
mixture
12.

Which of the following is NOT a compound?

a)

HCl

b)

Cl

c)

NaCl

d)

CO2

13.

An _____ has only one capital letter.

a)

element

b)

compound

14.
Is the following an element or compound?
a)
element
b)
compound
15.
Is the following an element or compound?
a)
element
b)
compound
16.
Is the following an element or compound?
a)
element
b)
compound
17.
a)
Element 
b)
Compound
18.
a)
Element 
b)
Compound
19.
Element or Compound?
Salt (NaCl)
a)
Element
b)
Compound
20.

Salt has a chemical formula of NaCl. Salt is a...

a)

Compound

b)

Mixture

c)

Element

d)

None of the Above

21.

What cannot be broken down into other substances?

a)

Compound

b)

Solids

c)

Mixture

d)

Element

22.

What is made up two or more elements that are chemically combined?

a)

Element

b)

Compound

c)

Mixture

d)

Solids

23.

How many elements are represented in the compound?

Na2CO3

a)

1

b)

2

c)

3

d)

4

24.

A combination of substances that are not chemically combined is called a(n)____________.

a)

mixture

b)

compound

c)

element

d)

metal

25.

An element is made up of only one kind of _____.

a)

isotope

b)

atom

c)

plastic

d)

metal

26.

_____ are small particles that make up most types of matter on Earth.

a)

compounds

b)

mixtures

c)

atoms

d)

elements

27.

What is H2SO4

made up of?

a)

2 hydrogen, 1 sulfur, 4 oxygen

b)

2 hydrogen & 4 sodium

c)

1 hydrogen, 2 sulfur, 4 oxygen

d)

1 hydrogen & 6 sodium

28.

How many atoms are there TOTAL in:

H2SO4

a)

3

b)

5

c)

6

d)

7

29.
These contain only one kind of atom. 
a)
element 
b)
compound 
c)
mixture 
d)
water 
30.
The air is a _________. 
a)
element 
b)
mixture 
c)
compound 
d)
energy 
31.

The diagram shows

a)

element

b)

mixture

c)

compound

32.
A pure substance that cannot be broken down into other substances by chemical or physical means. 
a)
compound          
b)
atom
c)
mixture 
d)
element
33.

Water is made up of hydrogen and oxygen, two elements that were chemically combined. This makes water a(n)

a)

atom

b)

compound

c)

element

d)

mixture

34.

How many atoms are present in one molecule of glucose, C6H12O6

a)

3

b)

12

c)

24

d)

4

35.

How many different types of atoms are there in the following molecule?

a)

7

b)

6

c)

3

d)

8

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