wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Chemistry Mid Term Review

Total questions: 75

Worksheet time: 2hrs 37mins

Name
Class
Date
1.

This is a correct dot diagram for fluorine (F)

a)

true

b)

false

2.

What are valence electrons?

a)

The innermost electrons

b)

The outermost electrons

3.

What is the octet rule?

a)

Elements can only have 8 electrons in its outermost shell

b)

The elements must form an octopus like structure

4.

Name the following compound: 
N2O4

a)

dinitrogren tetraoxide

b)

tetranitrogen dioxide

c)

nitrogen oxide

d)

dinitrogen tetraoxygen

5.

Name the following compound: 
CO2

a)

monocarbon dioxide

b)

carbon oxide

c)

carbon dioxide

d)

oxygen carbonide

6.

Name the following compound: 
CCl4

a)

monocarbon quadchloride

b)

carbon tetrachloride

c)

carbon chloride

d)

monocarbon quadchloide

7.

Name the following compound:
NF3

a)

nitrogen triflouride

b)

mononitrogen triflouride

c)

nitrogen flouride

d)

tetranitroflouide

8.

Name the following compound:
H2O

a)

hydrogen oxide

b)

dihydrogen oxide

c)

trihydroxide

d)

dihydrogen monoxide

9.

Write the formula for:
dinitrogen tetroxide

a)

N2O4

b)

NO2

c)

NO

d)

N4O8

10.

Write the formula for:
dinitrogen pentoxide

a)

NO

b)

N2O5

c)

2NO5

d)

O5N

11.

Write the formula for:
disulfur decafluoride

a)

2SF10

b)

SF5

c)

S2F10

d)

F10S2

12.

What can be generalized about covalent bonds?

a)

Electrons will be exchanged.

b)

Electrons will be transferred.

c)

Electrons will be given and taken.

d)

Electrons will be shared.

13.

Which of the following is the best representation of a molecule of fluorine (F2)?

a)

A

b)

B

c)

C

d)

D

14.

Carbon is in 4A, so how many bonds can it form based on electrons needed to fill its outer shell?

a)

1

b)

3

c)

4

d)

5

15.

What two types of atoms make a covalent bond?

a)

2 Nonmetals

b)

1 Nonmetal & 1 Metal

c)

2 Metals

d)

2 Noble Gases

16.

This image shows the bonding between Lithium and Fluorine. What does the red arrow show?

a)

electrons being shared

b)

electrons being transferred to Fluorine

c)

electrons being transferred to Lithium

d)

electrons being destroyed

17.

Which of the following is NOT a step in forming an ionic bond?

a)

One atom shares its electrons with another one

b)

Opposite charged ions form due to the transfer of electrons

c)

One atom gives electrons to another one

d)

Oppositely charged ions attract

18.

An ionic bond is the attraction between: (Select ALL that apply)

a)

oppositely charged ions

b)

similarly charged ions

c)

metals and nonmetals

d)

neutral atoms

e)

cations and anions

19.

Which of the following is the correct formula for these two ions: Al+3 & S-2

a)

AlS3

b)

Al2S3

c)

Al3S2

d)

Al3S

20.

If I had a cation with a charge of 2+ how would you describe the formation of that ion?

a)

gained 2 electrons

b)

lost 2 electrons

c)

gained 4 electrons

d)

lost 4 electrons

21.

If I had an anion with a charge of 3- how would you describe the formation of that ion?

a)

gained 2 electrons

b)

lost 2 electrons

c)

gained 3 electrons

d)

lost 3 electrons

22.

Looking at the periodic table, when the alkali metals form an ion what charge do they have?

a)

1-

b)

1+

c)

2-

d)

2+

e)

3-

23.

Looking at the periodic table, when the alkaline earth metals form an ion what charge do they have?

a)

1-

b)

1+

c)

2-

d)

2+

e)

3-

24.

Looking at the periodic table, when the halogens form an ion what charge do they have?

a)

1-

b)

1+

c)

2-

d)

2+

e)

3-

25.

Nitrogen, N, will form which of the following ions?

a)

N

b)

N-3

c)

N-5

d)

N+5

26.

In the compound aluminum oxide, which is the cation?

a)

[ Al ] +3

b)

Al

c)

[ O ] -2

d)

O

27.

When ionic compounds form what is the overall charge?

a)

neutral

b)

positive

c)

negative

28.

What is responsible for bringing cations and anions together?

a)

the size of the ions

b)

the opposite charges are attracted to one another

c)

the similar charges are attracted to one another

d)

depends on what period they're in

29.

What is another name of an ionic compound

a)

salt

b)

cation

c)

anion

d)

polyatomic ion

30.

Which is the correct name for CaBr2?

a)

Calcium Bromine

b)

Bromine Calcium

c)

Calcium Bromide

d)

Bromine Chloride

e)

Calcium Bromate

31.

where are the metaloids found

a)

far left, vertical

b)

stair step/diagonal

c)

far right horizontal

d)

at the bottom

32.

What is the name of group number 1?

a)

halogens

b)

noble gases

c)

alkali metals

d)

alkaline earth metals

33.

What is the name of group number 2?

a)

transition metals

b)

halogens

c)

metaloids

d)

alkaline earth metals

34.

What group number are the halogens found?

a)

18 (8A)

b)

1

c)

2

d)

17 (7A)

35.

Periodic law states that the elements are arranged according to their atomic ________ so that elements with similar chemical properties are in the same ________ and properties repeat periodically.

a)

numbers, rows

b)

masses, rows

c)

masses, column

d)

numbers, column

36.

A grouping of elements based on similar chemical properties, arranged by columns in the periodic table; also known as a group

a)

family

b)

period

c)

row

d)

isotope

37.

A row on the Periodic Table of Elements

a)

family

b)

period

c)

row

d)

isotope

38.

___________ is the only metal that is a liquid at room temperature.

a)

Platinum

b)

Water

c)

Tin

d)

Mercury

39.

Metals (select all that apply)

a)

are found on the right side of the periodic table.

b)

are found on the left side of the periodic table.

c)

are good conductors of heat and electricity.

d)

are brittle.

e)

are malleable and ductile.

40.

Nonmetals (select all that apply)

a)

are found on the right side of the periodic table.

b)

are found on the left side of the periodic table.

c)

are good conductors of heat and electricity.

d)

are brittle.

e)

can be solid, liquids, or gases at room temperature.

41.

Which element is found in group 2, period 6?

a)

Oxygen (O)

b)

Barium (Ba)

c)

Selenium (Se)

d)

Carbon (C)

42.

Which halogen is found in period 4?

a)

Krypton (Kr)

b)

Xenon (Xe)

c)

Bromine (Br)

d)

Iodine (I)

43.

What atom matches this electron configuration?
1s22s22p63s23p64s23d10

a)

Zinc

b)

Copper

c)

Nickel

d)

Germanium

44.

What electron configuration matches an oxygen atom?

a)

1s22s22p63s2, 3p64s23d104p5

b)

1s22s22p4

c)

1s22s22p6

d)

1s22s22p63s23p64s23d1

45.

The electron configuration of an atom is 1s22s22p6.  The number of electrons in the atom is 

a)

3

b)

6

c)

8

d)

10

46.

Which electron configuration belongs to Chlorine (Cl)?

a)

1s2s2p3s3p5

b)

1s2s2p3s3p6

c)

1s2s2p3s3p7

47.

The atom with the largest atomic radius in Group 18 is - 

a)

Ar

b)

He

c)

Kr

d)

Rn

48.

As you move down a group, atomic radius increases because - 

a)

you add more and more neutrons

b)

you add more and more protons

c)

you add more and more shells (energy levels)

d)

you add more atomic mass

49.

The atom with the largest atomic radius in Period 4 (row 4) is - 

a)

K

b)

Kr

c)

Fe

d)

Fe

50.

Francium (Fr) has the lowest ionization energy in Group 1 because - 

a)

it has the smallest number of valence electrons

b)

it has the greatest atomic mass

c)

it has the greatest number of protons, so it attracts its electrons the strongest

d)

its 1 valence electron is very far from the nucleus, so little energy is needed to remove it

51.
The element with the smallest ionization energy in Period 6 is - 
a)
Rn
b)
Cs
c)
Os
d)
Tm
52.

Of the halogens, which has the smallest radius?

a)

F

b)

Br

c)

He

d)

At

53.

How many moles of sodium chloride are in a 321.8 g sample?

a)

18810 moles

b)

3.315 x 1024 moles

c)

5.507 moles

d)

4.767 moles

54.
What is the mass of 2.50 mol of oxygen gas O2?
a)
40.0 g
b)
80.0 g
c)
16.0 g
d)
32.0 g
55.

how many atoms are contained in a 456 g sample of carbon dioxide?

a)

10.34 atoms

b)

6.237 x 1024 atoms

c)

1.871 x 1025atoms

d)

2.079 x 1024 atoms

56.
How many atoms would be contained in 454 grams of iron (Fe)?
a)
6.02x1023 atoms
b)
8.14 atoms
c)
4.90x1024 atoms
d)
55.85x1023 atoms
57.

One mole of sulfur (S) is equal to home many atoms?

a)

32 atoms

b)

16 atoms

c)

1.20 x 1023 atoms

d)

6.022 x 1023 atoms

58.

To convert from moles to particles, you should multiply by ....

a)
b)
c)
d)
59.

To convert from particles to moles, you should multiply by ....

a)
b)
c)
d)
60.

To convert from moles to grams, you should multiply by ....

a)
b)
c)
d)
61.

To convert from particles to moles, you should multiply by ....

a)
b)
c)
d)
62.

To convert from grams to moles, you should multiply by ....

a)
b)
c)
d)
63.
What are the units for molar mass?
a)
grams
b)
amu
c)
grams/mole
d)
liters
64.
What is the mass of 0.89 mol of CaCl2?
a)
111 grams
b)
0.008 grams
c)
98.9 grams
d)
none of the choices
65.

How many moles are in 50 grams of Calcium Bromide, CaBr2?

a)

0.75

b)

1.25

c)

0.25

d)

0.55

66.
What is the mass of 2.50 mol of oxygen gas O2?
a)
40.0 g
b)
80.0 g
c)
16.0 g
d)
32.0 g
67.

How many moles are in 450g Potassium chloride? Write a formula first.

a)

6.0 g

b)

6.0 mol

c)

74.6 g/mol

d)

33.570 mol

68.
What is the molar mass of table salt (NaCl)?
a)
116.886 g/mol
b)
35.453 g/mol
c)
22.990 g/mol
d)
58.443 g/mol
69.
What is the mole used for? 
a)
To measure the amount of grams in a substance
b)
To measure the amount of atoms or molecules in a substance
c)
To measure the amount of energy in a substance
d)
To measure the amount of bonding in a substance 
70.
What is the molar mass of H2O?
a)
6.02 x 1023
b)
16 grams
c)
18 grams
d)
15.99999 grams
71.
How many moles are in 32 grams of Oxygen (O)? 
a)
3
b)
2
c)
1
d)
4
72.
How many moles are in 20 grams of Ca (Calcium)?
a)
0.5 
b)
1
c)
3
d)
20
73.

What is the molar mass when you have 4 moles of CO2?

a)

176 grams

b)

54 grams

c)

128 grams

d)

280 grams

74.

The mole can be used to measure (SELECT ALL CORRECT ANSWERS)

a)

The amount of atoms

b)

The amount of molecules or compounds in a substance

c)

The amount of particles

d)

The amount of fission or fusion decay over time

75.
Which element, when combined with chlorine, would most likely form an ionic compound? 
a)
 lithium 
b)
 carbon
c)
phosphorus
d)
bromine