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Cambridge Checkpoint 8 Elements and Compounds

Total questions: 43

Worksheet time: 44mins

Name
Class
Date
1.

What does the word “Atom” mean?

a)

Cannot be divided

b)

The smallest thing

c)

An element

d)

A particle

2.
These contain only one kind of atom. 
a)
element 
b)
compound 
c)
mixture 
d)
water 
3.

The air is a _________.

a)

element

b)

mixture

c)

compound

d)

energy

4.

Water is a ___________.

a)

element

b)

mixture

c)

compound

5.
Elements can be broken down into simpler substances. 
a)
false 
b)
true 
c)
sometimes 
6.
A molecule can be made of the same kind of atoms. 
a)
true
b)
false 
c)
Say What??!!!
d)
Dude!! Sweet!!
7.

Carbon is a(n) ______

a)

compound

b)

element

c)

mixture

8.

Which of the following is true of oxygen?

a)

Oxygen is an element because its most basic unit is a single type of atom

b)

Oxygen is a compound because its most basic unit is a single type of atom.

c)

Oxygen is a mixture because its most basic unit contains more than one particle.

d)

Oxygen is a compound because its most basic unit contains more than one type of particle.

9.

Which statement identifies why oxygen is classified as a pure substance and air is classified as a mixture?

a)

Oxygen is more reactive than air.

b)

Oxygen has a higher density than air.

c)

Oxygen goes under a phase change, whereas air is always a gas.

d)

Oxygen contains only one substance, but air contains several substances.

10.

When electricity passes through water, hydrogen and oxygen are produced. Which table correctly labels the compounds and elements involved in the process?

a)

Water-->Compound

Hydrogen-->Compound

Oxygen--->Element

b)

Water-->Compound

Hydrogen--->Element

Oxygen--->Compound

c)

Water--->Compound

Hydrogen--->Element

Oxygen--->Element

11.

Water (H2O), is not found on the periodic table because water is a...

a)

atom

b)

liquid

c)

mixture

d)

compound

12.

This image is a model of...

a)

an element

b)

a compound

c)

a homogenous mixture

d)

a heterogeneous mixture

13.

This picture is a model of...

a)

an element

b)

a compound

c)

a homogenious mixture

d)

a heterogeneous mixture.

14.
Which of the following represents an element?
a)
H2O
b)
H2
c)
NaCl
d)
CaCO3
15.
Which of the following is not a compound?
a)
HCl
b)
Cl
c)
NaCl
d)
CO2
16.
What cannot be broken down into other substances?
a)
Compound
b)
Mixture
c)
Solids
d)
Element
17.

How many elements are represented in the compound?

Na2CO3

a)

1

b)

2

c)

3

d)

4

18.
What is H2SO4 
 made up of?
a)
2 hydrogen, 1 sulfur, 4 oxygen
b)
1 hydrogen, 2 sulfur, 4 oxygen
c)
2 hydrogen & 4 sodium
d)
1 hydrogen & 6 sodium
19.
How many atoms are there TOTAL in:
H2SO4
a)
6
b)
5
c)
7
d)
3
20.

C is the symbol for which of the following elements?

a)

Calcium

b)

Chromium

c)

Chlorine

d)

Carbon

21.

Which of the following substances is considered a compound?

a)

CO

b)

O3

c)

Cl2

d)

Cs

22.
Compounds are chemically bonded together 
a)
False
b)
True
c)
I don't know?
23.
The name for the table that organises all elements according to it's atomic number is called the:
a)
The Table
b)
The Periodic Table of Elements
c)
The Chemical Table
d)
The Atomic Table
24.
Name the following ionic compound: MgSO4
a)
magnesium sulfoxide
b)
magnesium sulfide
c)
magnesium sulfate
d)
magnesium oxide
25.
In most cases, when naming you change the ending of the second element to ________.
a)
-ate.
b)
-ite.
c)
-ide.
d)
-ine.
26.
name the following ionic compound: NaF
a)
nitrogen fluorine
b)
sodium fluoride
c)
nitrogen fluoride
d)
sodium fluorine
27.
The chemical formula of carbon tetrachloride is
a)
CCl
b)
C₄Cl
c)
CCl₄
d)
C(IV)Cl
28.
carbon monoxide
a)
CO
b)
CO2
c)
C2O
d)
COH
29.

Rows on the Periodic Table are called _____ while columns are called _____.

a)

groups, families

b)

groups, periods

c)

periods, groups

d)

families, groups

30.

Which elements are found on the right side of The Periodic Table?

a)

Metals

b)

Nonmetals

c)

Metalloids

d)

Water

31.
 Li2O
a)
Dilithium oxideDilithium oxide
b)
Lithium oxide
c)
Lithium dioxide
32.
MgS 
a)
Magnesium sulfide
b)
Monomagnesium monosulfide
c)
Magnesium monosulfide
33.
Al2S3
a)
Dialuminum Trisulfide
b)
Aluminum sulfide
34.
Name MgO
a)
Magnesium Oxygen
b)
Magnesium Oxide
c)
Magnesium Monoxide
d)
Magnesium Dioxide
35.

What is a compound?

a)

The smallest unit of all matter.

b)

Two or more atoms bonded together.

c)

A substance containing only one type of atom.

d)

A substance containing different types of bonded atoms.

36.

IRON HYDROXIDE contains the following, EXCEPT...

a)

iron

b)

oxygen

c)

hydrogen

d)

carbon

37.

What elements can be found in

COPPER NITRATE?

(you may choose more than one answer)

a)

copper

b)

nitrogen

c)

oxygen

d)

carbon

38.

What is the correct name for CF4

a)

Carbon fluoride

b)

Carbon IV fluoride

c)

Carbon tetrafluoride

39.

Name the ionic compound, CaCO3

a)

calcium carbide

b)

calcium carbon trioxide

c)

calcium carbon oxide

d)

calcium carbonate

40.

The symbol for neon is

a)

Ni

b)

No

c)

N

d)

Ne

41.

C is the symbol for

a)

Calcium

b)

Cobalt

c)

Carbon

d)

Copper

42.

P is the symbol for

a)

Potassium

b)

Phosphorous

c)

Plutonium

d)

Plasticine

43.

The air is a _________.

a)

element

b)

mixture

c)

compound

d)

energy

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