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Unit 4 Practice Test ALL

Total questions: 73

Worksheet time: 2hrs 12mins

Name
Class
Date
1.

The charge for oxygen is:

a)

1-

b)

2-

c)

1+

d)

2+

2.

Which of the following is not a binary compound?

a)

NaClNaCl  

b)

KSCNKSCN  

c)

Li2OLi_2O  

d)

Ca3P2Ca_3P_2  

3.

The correct formula for beryllium fluoride is:

a)

BeFBeF  

b)

BF2BF_2  

c)

Be2FBe_2F  

d)

BeF2BeF_2  

4.

The correct name for CaCl2CaCl_2  is:

a)

calcium chlorine

b)

calcium chloride

c)

calcium dichloride

d)

calcium (II) chloride

5.

The correct formula for copper (II) nitride is:

a)

CuNCuN  

b)

CuN2CuN_2  

c)

Cu3N2Cu_3N_2  

d)

Cu2N3Cu_2N_3  

6.

LiBr is called

a)

lithium bromine

b)

lithium (I) bromine

c)

lithium bromide

d)

lithuim (I) bromide

7.

Which of these combinations is an ionic compound made of?

a)

Metal and Metal

b)

Nonmetal and Nonmetal

c)

Metal and Nonmetal

d)

Cation and Cation

8.

Name the following ionic compound: BeCl2

a)

beryllium chlorine

b)

beryllium II chloride

c)

beryllium chloride

d)

beryllium dichloride

9.

Name the following ionic compound: Cs2S

a)

cesium sulfide

b)

cesium sulfate

c)

cesium II sulfate

d)

cesium II sulfide

10.

Which of the following combinations would need roman numerals in the name?

a)

potassium + fluorine

b)

beryllium + oxygen

c)

boron + iodine

d)

gold + oxygen

11.

When naming ionic compounds with transition metals you need to include roman numerals to show the _____ of the metal..

a)

atomic number

b)

mass number

c)

charge

d)

ionization energy

12.

When naming a compound, what must the last part be?

a)

the element with "ide" at the end

b)

the element with the ending "ite"

c)

the name of the element

d)

the element with "ide" at the end, unless its a polyatomic ion

13.

The number that tells you if an ion has lost or gained electrons

a)

atomic number

b)

oxidation number

c)

mass number

d)

electron number

14.

If I gain electrons I become

a)

Positive because I've added to my atom

b)

negative because I've added electrons

c)

same because i'm balanced

d)

equal because now I have electrons

15.

Name the following compound: Zn3N2

a)

zinc nitride

b)

trizinc dinitride

c)

zinc (III) nitride

d)

zinc (II) nitide

e)

zinc nitrogen

16.

What is the name of the following compound: NaCl

a)

sodium chloride

b)

sodium (I) chloride

c)

sodium chlorine

d)

sodium (I) chlorine

17.
What is the correct formula for Sodium Oxide?
a)
NaO
b)
NaO2
c)
Na2O
d)
Na2O2
18.
How do the following two elements bond together?
Cr3+  O2-         
a)
CrO
b)
Cr3O2
c)
Cr2O3
d)
CrO3
19.
Which of the following is NOT an ionic compound:
a)
CaO
b)
NaOH
c)
BaCl2
d)
Br2
20.
How do the following two elements bond together?
Al3+  O2-         
a)
AlO
b)
Al2O3
c)
Al3O6
d)
Al3O2
21.
What is the correct formula for the compound, lithium oxide?
a)
LiO
b)
Li2O
c)
LiO2
d)
Li2O2
22.
The chemical formula of iron (III)bromide is
a)
FeBr
b)
Fe(III)Br
c)
FeBr₃
d)
Fe₂Br₃
23.
In most cases, when naming you change the ending of the second element to ________.
a)
-ate.
b)
-ite.
c)
-ide.
d)
-ine.
24.
What is the formula for calcium phosphide?
a)
CaP
b)
Ca2P3
c)
Ca3P2
d)
Ca2P
25.
Name the Compound:
SnO2
a)
tin(II) oxide
b)
tin(IV)oxide
c)
tin(II)oxegen 
d)
tin oxide
26.
In the compound TiO2, titanium has a charge of
a)
4+
b)
2+
c)
2-
d)
4-
27.
What is the formula for manganese(III) oxide?
a)
MgO
b)
Mg2O3
c)
MnO
d)
Mn2O3
28.
What is the correct formula for the compound, lithium oxide?
a)
LiO
b)
Li2O
c)
LiO2
d)
Li2O2
29.

Which type of particle?

a)

Atom

b)

Ion

c)

molecule

30.

How many atoms of carbon are in C3H8?

(a)  

31.

How many atoms of hydrogen are in C3H8?

(a)  

32.

How many atoms of magnesium are in Mg(OH)2?

(a)  

33.

How many atoms of oxygen are in Mg(OH)2?

(a)  

34.

How many atoms of hydrogen are in Mg(OH)2?

(a)  

35.

How many atoms of calcium are in Ca3(PO4)2?

(a)  

36.

How many atoms of phosphorus are in Ca3(PO4)2?

(a)  

37.

How many atoms of oxygen are in Ca3(PO4)2?

(a)  

38.

What is the molar mass of CH3OH? (Two decimal places, not units)

(a)  

39.

What is the molar mass of CuSO4? (Two decimal places, no units)

(a)  

40.

What is the molar mass of CCl4? (Two decimal places, no units)

(a)  

41.

What is the molar mass of Fe(NO3)2? (Two decimal places, no units)

(a)  

42.

How many atoms are in a mole of neon?

a)

10

b)

20.18

c)

6.022 x 1023

43.

How many molecules are in a mole of methane, CH4?

a)

5

b)

16.05

c)

6.022 x 1023

44.

When a question asks you to calculate mass, your units should be

a)

liters

b)

grams

c)

molecules

d)

atoms

45.

When a question asks you to calculate volume, your units should be

a)

liters

b)

grams

c)

molecules

d)

atoms

46.

When a question asks you to calculate atoms, your units should be

a)

liters

b)

grams

c)

molecules

d)

atoms

47.

When a question asks you to calculate molecules, your units should be

a)

liters

b)

grams

c)

molecules

d)

atoms

48.

When a question gives you moles and asks you to calculate mass, where do you find the mass to use?

a)

22.4 grams

b)

Periodic Table

grams

c)

Periodic Table

grams/mole

d)

6.02 x 1023 grams

49.

When a question gives you moles and asks you to calculate volume, where do you find the volume to use?

a)

22.4 L

b)

22.4 L/mole

c)

Periodic Table

L/mole

d)

6.02 x 1023 L/mole

50.

When a question gives you moles and asks you to calculate atoms, where do you find this information to use?

a)

6.02 atoms

b)

22.4 atoms/mole

c)

Periodic Table

atoms/mole

d)

6.02 x 1023 atoms/mole

51.

When converting mass to moles, what conversion factor is needed?

a)

mass = 1 mole

b)

mass = 1 gram

c)

mass = 1 Liter

d)

mass = 1 atom

52.

When a question asks you to calculate atoms, your units should be

a)

liters

b)

grams

c)

molecules

d)

atoms

53.

What is Avogadro's Number?

a)

6.02 atoms

b)

6.02 x 1023 molecules

c)

22.4 L/mole

d)

6.02 x 1023 particles/mole

54.

How many atoms are in one mole of any substance?

a)

6.02 x 1023

b)

2.06 x 1032

c)

22.4

d)

1

55.

How many atoms are in 9.44 moles of Al?

a)

5.68 atomsAl

b)

5.68x1024 atoms Al

c)

0.705 atoms Al

d)

1.25x1023 atoms Al

56.
How many moles are 2.85 x 1018 atoms of iron?
a)
4.73 x 10-6 moles
b)
1.72 x 1042 moles
c)
1.72 x 10-42 moles
d)
4.73 x 106 moles
57.
How many moles of copper are 4.57 x 1013 atoms of copper?
a)
7.59 x 10-11 moles
b)
2.75 x 1037 moles
c)
7.59 x 1011 moles
d)
2.75 x 1033 moles
58.
How many molecules are in 9.44 moles of AlCl3?
a)
5.68 molec AlCl3
b)
5.68x1024 molec AlCl3
c)
0.705 molec AlCl3
d)
1.25x1023 molec AlCl3
59.

How many atoms are in 1.258 mol of calcium carbonate, CaCO3?

60.

How many moles of copper are 4.57 x 1013 atoms of copper?

a)

7.59 x 1011 moles

b)

2.75 x 1037 moles

c)

7.59 x 10-11 moles

d)

2.75 x 1033 moles

61.

1 mole of Si contains

a)

6.02x1023 molecules

b)

6.02x1023 atoms

c)

6.02x1023 formula units

d)

lots of stuff

62.
Avogadro's number of representative particles is equal to one_____.
a)
kilogram
b)
gram
c)
kelvin
d)
mole
63.

Determine the number of atoms in 0.50 moles of zinc.

a)

3.01 x 1023 atoms

b)

4.15 x 10-24 atoms

c)

2.71 x 10-22 atoms

d)

303 atoms

64.
How many moles are 2.85 x 1020 atoms of iron?
a)
4.73 x 10-4 moles
b)
1.72 x 104 moles
c)
1.72 x 10-42 moles
d)
4.73 x 104 moles
65.
How many molecules are in 9.4 moles of AlCl3?
a)
5.66
b)
5.66x1024
c)
0.705
d)
1.25x1023
66.

Which of the following statements regarding the mole is INCORRECT?

a)

A mole is a unit of quantity equal to 6.02 x 1023 particles.

b)

The number of particles in a mole is known as Avogadro’s number.

c)

A mole of particles of an element is numerically equal to the atomic mass of the element.

d)

none of the above

67.

The mass of one mole of an element is equal to

a)

its atomic number from the periodic table, but in amus.

b)

its atomic mass from the periodic table, but in amus.

c)

its atomic mass from the periodic table, but in grams.

d)

its atomic number from the periodic table, but in grams.

68.
How many molecules are there in 31.8 moles of water?
a)
5.28 x 10-23 molecules
b)
1.91 x 1025 molecules
c)
5.28x 10-25
d)
1.91 x 1022
69.

How many atoms are in 6.5 moles of zinc, Zn?

a)

4.2 atoms

b)

3.91 X 10-24 atoms

c)

3.91 x 1024 atoms

d)

5 x 1024 atoms

70.

When you are solving for molecules, atoms, and particles you always use what number?

a)

6.02 X 1023

b)

Lucky 7

c)

Guess

d)

24

71.
How many moles of copper are 4.57 x 1013 atoms of copper?
a)
7.59 x 10-11 moles
b)
2.75 x 1037 moles
c)
7.59 x 1011 moles
d)
2.75 x 1033 moles
72.

How many moles are in 2.85 x 1018 atoms of iron, Fe?

a)

41.4 molecules

b)

4.14 x 1023 molecules

c)

4.14 x 1025 molecules

d)

1.83 x 10-21 molecules

73.

How many moles are in 3.01 x 1022 atoms of magnesium, Mg?

a)

0.05 moles

b)

1.81 X 1046 moles

c)

5.00 x 1021 moles

d)

5 moles

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