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Structure of Matter REVIEW

Total questions: 52

Worksheet time: 38mins

Name
Class
Date
1.

What is the chemical formula for this molecule?

a)

C3H6O

b)

CH6O

c)

C3H6

d)

O2C3H

2.
All matter is made of 
a)
energy 
b)
atoms 
c)
electrons 
d)
compounds 
3.
Elements are made of 
a)
many types of atoms 
b)
the periodic table
c)
one type of atom 
d)
molecules 
4.
Two or more atoms chemically bonded together are called a
a)
atom
b)
element
c)
molecule
d)
mixture
5.

H₂O is a compound molecule.

a)

TRUE

b)

FALSE

6.

O2 is a compound molecule.

a)

TRUE

b)

FALSE

7.

Which of the following is NOT a compound?

a)

HCl

b)

Cl2

c)

NaCl

d)

CO2

8.
What do we call a chemical substance made up of 2 or more different types atoms bonded together?
a)
formula
b)
atom
c)
subscript
d)
compound
9.
A recipe for a chemical substance is called a ________ _________.
a)
coefficent
b)
chemical formula
c)
Oxygen
d)
atom
10.

Organize these options into the right categories

Categorize the following
Extended Structure - Crystalline Solid
Simple Molecule
11.
H2O2← ?
This number tells the number of atoms present.
a)
coefficient
b)
molecule
c)
subscript
d)
atom
12.
When there is no subscript after an element's symbol, it means there are how many atoms of that element?
a)
0
b)
1
c)
2
d)
unknown
13.

If a compound is two or more different elements combined. Which is NOT a compound?

a)

H20 (Water)

b)

C6H12O6 (Sugar)

c)

O2 (Oxygen)

d)

NaCl (Salt)

14.

What is matter?

a)

Matter has mass and takes up space.

b)

Matter is charged atoms.

c)

Matter has a charge and a mass.

d)

Matter is polar molecules.

15.
How many hydrogen atoms are in a molecule of glucose/sugar (C6H12O6)?
a)
6
b)
12
c)
18
d)
24
16.

__________ is a solid structure whose atoms or molecules are arranged in geometric repeating pattern

a)

Atom

b)

Molecule

c)

Crystal

17.

Finish the sentence.


A compound is a molecule that contains_____

a)

1 or more of the same element.

b)

at least 2 different elements.

18.

Oxygen gas is NOT a compound because...

a)

it has more than 1 element

b)

it is a molecule

c)

it only consists of 1 element

d)

its red

19.

Examples of compounds.

(Select all that apply)

a)
b)
c)
d)
20.

How many atoms in a molecule of chocolate?

a)

7

b)

42

c)

15

d)

21

21.

How many elements are in CaCO3

a)

1

b)

2

c)

3

d)

4

22.

What is the chemical formula for this molecule?

a)

Al2Cl4

b)

A2C6

c)

Al2Cl6

d)

AlCl

23.

What is the chemical formula for this molecule?

a)

CH4

b)

C4H10

c)

Ch14

d)

H4C10

24.

Which of the molecules are compounds?

a)

b)

c)

d)

25.

View the Polyester molecule. This molecule has ......

a)

a simple molecule structure

b)

helium atoms attached to metal atoms

c)

lots of colors used to make a chain

d)

a repeated pattern by extended structure

26.

What can be combined to form molecules?

a)

Electrons

b)

Neutrons

c)

Atoms

d)

Substances

27.

In crystals, atoms are arranged in an ordered _________

a)

Molecule

b)

Matter

c)

Compound

d)

Pattern

28.

Which of the following represents an element?

a)

H2O

b)

HCl

c)

NaCl

d)

Au

e)

CaCO3

29.

How many elements are there in CuSO4?

a)

1

b)

2

c)

3

d)

4

e)

5

30.

This picture represents which of the following?

a)

element

b)

compound

31.

This picture represents which of the following?

a)

element

b)

compound

32.

This picture represents which of the following?

a)

element

b)

compound

33.

A section of the Periodic Table is shown. What is the Chemical Symbol for Magnesium?

a)

12

b)

Magnesium

c)

24.31

d)

Mg

34.

If you were to look at grains of table salt (sodium chloride, NaCl) with a magnifying glass, you would see that each grain is a little cube. Why are salt grains cubical?

a)

All extended structure compounds form cubes

b)

Sodium and chlorine atoms both have cubical shapes

c)

In the extended structure of NaCl, atoms are arranged in a cubical pattern

d)

A molecule of NaCl contains eight atoms, each at one of the corner of the cube.

35.

What does the periodic table show?

a)

elements

b)

compounds

c)

atoms

d)

molecules

36.

What does the subscript 2 mean in the chemical formula for H2O?

a)

2 atoms of hydrogen

b)

2 atoms of oxygen

c)

2 molecules of water

d)

2 electrons of oxygen

37.

This is an example of...

a)

a simple molecule

b)

an extended structure

38.

Based on the picture shown, what can you conclude about water and hydrogen peroxide?

a)

Since water and hydrogen peroxide are both made of oxygen and hydrogen atoms, they have the same properties.

b)

Water and hydrogen peroxide have a different number of oxygen atoms, which means they are different substances and may have different properties.

39.

one or two letters that represent the name of an element

a)

element name

b)

element symbol

c)

atomic number

d)

atomic mass

40.

Who invented the Periodic Table?

a)

Mendeleev

b)

Bohr

c)

Lewis

d)

Democritus

41.

How is the periodic table organized?

a)

Periods are horizontal and groups are vertical

b)

Periods and groups are horizontal

c)

Periods are vertical and groups are horizontal

d)

Periods and groups are vertical

42.

Which elements have the most similar chemical properties?

a)

K and Na

b)

K and Ca

c)

K and Cl

d)

K and S

43.

Which elements are in the same group or family?

a)

Na and Mg

b)

Na and H

c)

Li and Be

d)

K and Ca

44.

Which two elements are most closely related?

a)

Na (11) and Re (75)

b)

Na (11) and Fr (87)

c)

Na (11) and Mg (12)

d)

Na (11) and Al (13)

45.

From an elements location on the periodic table, you can predict

a)

its chemical name

b)

when it was discovered

c)

its properties

d)

its chemical name

46.

Which chemical symbol is written correctly?

a)

NA

b)

nA

c)

Na

d)

na

47.
What element is will have the most similar physical and chemical properties to the element Sulfur (S)?
a)
Carbon (C)
b)
Phosphorous (P)
c)
Oxygen (O)
d)
Neon (Ne
48.

Look at the periodic table. Which list of elements forms a group on the periodic table?

a)

Li, Be, B, C, N, O, F, and Ne

b)

He, Ne, Ar, Kr, Xe, and Rn

c)

B, Si, As, Te, and At

d)

Sc, Ti, V, Cr, Mn, Fe, Co, Cu, Ni, and Zd

49.

What is the example in the image?

a)

A simple molecule

b)

An atom

c)

An extended structure (crystal lattice)

d)

A water molecule

50.

Why are oxygen molecules (O2) different than ozone molecules (O3) even though they are made up of the same atoms.

a)

They have different structures.

b)

They have different amounts of atoms.

c)

They have different chemical formulas.

d)

All of the above answers are correct.

51.

Which is the correct formula for:

3 Hydrogen (H)

1 Sulfur (S)

4 Oxygen (O)

a)

H3SO4

b)

HSO4

c)

H4S3O

d)

H2O

52.
A substance made up of only one kind of atom
a)
Element
b)
Elementary 
c)
Ellie
d)
Elephant

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