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Chemistry Final Exam Review

Total questions: 44

Worksheet time: 34mins

Name
Class
Date
1.

What is the pH of a solution with this hydrogen ion concentration?

[H+] = 3 x 10-3 M

a)

2.5

b)

3

c)

14

d)

11.5

2.

Find the number of grams of oxygen (O2) that can be made from 44.8 Liters of O2.

a)

32.0 g O2

b)

16.0 g O2

c)

64.0 g O2

d)

22.4 g O2

3.

What element has 16 protons in its nucleus?

a)

oxygen (O)

b)

phosphorus (P)

c)

sulfur (S)

d)

sodium (Na)

4.

According to the octet rule, atoms form ions or bonds in ways that give them how many electrons?

a)

2

b)

4

c)

6

d)

8

5.

Which of these elements belongs to the group of most reactive metals and will explode when it reacts with water?

a)

chlorine (Cl)

b)

neon (Ne)

c)

iron (Fe)

d)

potassium (K)

6.

If 1x1013 carbon dioxide molecules are formed, how many grams of water are also formed?

a)

4x10-10 g H2O

b)

1x10-1 g H2O

c)

6.02x1023 g H2O

d)

18.02 g H2O

7.

Determine the number of kilograms of baking soda, NaHCO3, you would have if you started with 46.8 decigrams of baking soda.

a)

46,800 kg

b)

0.00468 kg

c)

4.68 kg

d)

0.468 kg

8.

Which item is called a beaker?

a)
b)
c)
d)
e)
9.

Which item is called a bunsen burner?

a)
b)
c)
d)
e)
10.

Which item is called a graduated cylinder?

a)
b)
c)
d)
e)
11.

Which item is called an erlenmyer flask?

a)
b)
c)
d)
e)
12.

Which item is called a test tube?

a)
b)
c)
d)
e)
13.

How many significant figures are in the measurement 8.00 grams?

a)

1

b)

2

c)

3

d)

4

e)

5

14.

How many significant figures are in the measurement 420 mg?

a)

1

b)

2

c)

3

d)

4

e)

5

15.

How many significant figures are in the measurement 0.004 meters?

a)

1

b)

2

c)

3

d)

4

e)

5

16.

Which diagram shows an element?

a)
b)
c)
17.

Which diagram shows a compound?

a)
b)
c)
18.

Which diagram shows a mixture?

a)
b)
c)
19.

Which is the correct isotope symbol for lithium-7?

a)
b)
c)
20.

Which of the following is not safe to do in the lab?

a)

wearing closed toe shoes

b)

reading the directions first

c)

using a wafting motion to observe smells

d)

tasting the chemicals

21.

Identify the acid and its conjugate base in this reaction.

a)

NH3 is the acid, and H2O is the conjugate base.

b)

NH3 is the acid, and NH4+ is the conjugate base.

c)

H2O is the acid, and NH3 is the conjugate base.

d)

H2O is the acid, and OH- is the conjugate base.

22.

MgSO4 + KOH --> Mg(OH)2 + K2SO4

When this equation is balanced, what is the coefficient in front of KOH?

a)

1

b)

2

c)

3

d)

4

23.

The elements highlighted in blue are known as the

a)

alkaline earth metals

b)

alkali metals

c)

noble gases

d)

halogens

e)

transition metals

24.

The elements highlighted in orange are known as the

a)

alkaline earth metals

b)

alkali metals

c)

noble gases

d)

halogens

e)

transition metals

25.

The elements highlighted in red are known as the

a)

alkaline earth metals

b)

alkali metals

c)

noble gases

d)

halogens

e)

transition metals

26.

Calculate the pH of a solution with this hydroxide concentration:

[OH-] = 4 x 10-9 M

a)

8.4

b)

5.6

c)

14.0

d)

7.0

27.

Which is the correct Lewis structure for carbon dioxide?

a)
b)
c)
d)
28.

Calculate the molar mass of lithium sulfide, Li2S.

a)

13.88 g/mol

b)

45.95 g/mol

c)

39.01 g/mol

d)

71.08 g/mol

29.

What is the correct name for the compound P2S4?

a)

phosphorus sulfide

b)

phosphorus (II) sulfide

c)

diphosphorus tetrasulfide

d)

phosphorus disulfate

30.

Which of these is an ionic compound?

a)

K2O

b)

H3PO4

c)

CBr4

31.

Which of these is an acid?

a)

K2O

b)

H3PO4

c)

CBr4

32.

What type of reaction is this?

a)

synthesis

b)

decomposition

c)

single replacement

d)

double replacement

e)

combustion

33.

What type of reaction is this?

a)

synthesis

b)

decomposition

c)

single replacement

d)

double replacement

e)

combustion

34.

What type of reaction is this?

a)

synthesis

b)

decomposition

c)

single replacement

d)

double replacement

e)

combustion

35.

What type of reaction is this?

a)

synthesis

b)

decomposition

c)

single replacement

d)

double replacement

e)

combustion

36.

What type of reaction is this?

a)

synthesis

b)

decomposition

c)

single replacement

d)

double replacement

e)

combustion

37.

A piece of rock weighs 7.0 g and takes up 1.2 cm3 of space. Calculate the density of the rock. Round your answer to the correct significant figures.

a)

0.17 g/cm3

b)

0.2 g/cm3

c)

5.83 g/cm3

d)

5.8 g/cm3

e)

6 g/cm3

38.

What is the volume in this graduated cylinder, using the correct significant figures?

a)

85.3 mL

b)

85.35 mL

c)

89 mL

d)

88.5 mL

39.

How many protons, neutrons, and electrons are in this calcium atom?

a)

40 protons, 20 neutrons, and 2 electrons

b)

20 protons, 20 neutrons, and 20 electrons

c)

20 protons, 20 neutrons, and 18 electrons

d)

20 protons, 20 neutrons, and 22 electrons

e)

20 protons, 40 neutrons, and 22 electrons

40.

Which of these is a property of a base?

a)

pH = 7

b)

pH < 7

c)

turn litmus paper pink

d)

bitter taste

41.

Which letter represents the protons?

a)

A

b)

B

c)

C

d)

D

42.

Which letter represents the neutrons?

a)

A

b)

B

c)

C

d)

D

43.

Which letter represents the electrons?

a)

A

b)

B

c)

C

d)

D

44.

Which letter represents the nucleus?

a)

A

b)

B

c)

C

d)

D

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