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Elements and compounds

Total questions: 40

Worksheet time: 24mins

Name
Class
Date
1.
Is sugar (C12H22O11) an element or a compound?
a)
Element
b)
Compound
2.
When the nails were left outside and allowed to rust during the substance detector activity, what new substance was created?
a)
Mud
b)
Rust
c)
Grass
d)
Water
3.
The properties of the elements that make up a compound are usually very similar to the compound itself.
a)
True
b)
False
4.
Water (H2O) freezing is an example of:
a)
A chemical change
b)
A physical change
5.
A compound consists of two or more elements bound together.
a)
True
b)
False
6.
Is Iron (Fe) an element or a compound?
a)
Element
b)
Compound
7.
A chemical change always results in the formation of a:
a)
explosion
b)
big mess
c)
new substance
d)
new state of matter
8.
Which of the following is not a compound?
a)
HCl
b)
Cl
c)
NaCl
d)
CO2
9.
Which of the following represents an element?
a)
H2O
b)
H2
c)
NaCl
d)
CaCO3
10.
Salt water boils and the water completely evaporates, salt (NaCl) is left in the bottom of the beaker. Which of the following is left in the beaker?
a)
Compound
b)
Element
c)
Mixture
d)
None of the Above
11.
What cannot be broken down into other substances?
a)
Compound
b)
Mixture
c)
Solids
d)
Element
12.
How many elements are represented in the compound?
Na2CO3
a)
1
b)
2
c)
3
d)
4
13.

Which is the best description of an element?

a)

A substance that cannot be broken down into simpler substances

b)

A collection of atoms that have different abilities when joined together

c)

A man-made mineral

d)

A mixture of substances

14.

How many different elements are in the compound?

a)

12

b)

3

c)

24

d)

6

15.

A substance that consists of 2 or more different elements is a

a)

element

b)

data table

c)

symbol

d)

compound

16.
This diagram represents a _____.
a)
pure substance that is a compound
b)
mixture of elements
c)
pure substance that is an element
d)
mixture of compounds
17.
This diagram represents a _____.
a)
pure substance that is a compound
b)
mixture of elements
c)
pure substance that is an element
d)
mixture of compounds
18.
A combination of particles of one or more substance that are distributed uniformly throughout another substance is a/an
a)
Mixture 
b)
Substance
c)
Solution
19.
A combination of particles of one or more substance that are distributed uniformly throughout another substance is a/an
a)
Mixture 
b)
Substance
c)
Solution
20.
To change a solid to a liquid, what do you add?
a)
heat
b)
water
c)
cold
d)
mass
21.
Mixtures are __________ combined.
a)
Chemically
b)
Physically
c)
Magically
d)
Spontaneously
22.
Based off of the image, what type of matter is shown?
a)
gas
b)
solid
c)
liquid
23.
What is CO2 and example of?
a)
element
b)
mixture
c)
compound
24.

Both elements and compounds are pure substances.

a)

Agree

b)

Disagree

25.

Every compound has a chemical formula.

a)

Agree

b)

Disagree

26.

Carbon, Ar, and Ne are examples of elements.

a)

Agree

b)

Disagree

27.

Compounds have properties different from the elements that make it up.

a)

Agree

b)

Disagree

28.

Essential for life

a)

Elements

b)

Compounds

c)

Both

29.

Can be broken down into a simpler substance

a)

Elements

b)

Compounds

c)

Both

30.
This picture represents which of the following?
a)
element
b)
compound
c)
mixture
31.
This picture represents which of the following?
a)
element
b)
compound
c)
mixture
32.
This picture represents which of the following?
a)
element
b)
compound
c)
mixture
33.
What is the picture displayed?
a)
atom
b)
element
c)
molecule
d)
compound
34.

This diagram represents...

a)

An element

b)

A molecule

c)

A compound

d)

A mixture of elements and compounds

35.
Contains only one kind of atom.
a)
Element
b)
Compund
c)
Mixture
36.
In general, metals are _____. 
a)
poor conductors of heat
b)
brittle
c)
poor conductors of electricity 
d)
good conductors of heat
37.
Sulfur
a)
Metal
b)
Nonmetal
38.
What is salad?
a)
element
b)
compound
c)
mixture
39.
You are eating a pizza. What type of mixture are you consuming?
a)
homogeneous
b)
heterogeneous
c)
pure substance
d)
The Periodic Table
40.
A mixture that appears to be evenly mixed throughout:
a)
an atom
b)
a compound
c)
a homogeneous mixture
d)
a heterogeneous mixture

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