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Chemistry II Unit 2 Review

Total questions: 110

Worksheet time: 3hrs 36mins

Name
Class
Date
1.

In LiH, hydrogen has an oxidation number of

a)

-1

b)

+1

c)

-2

d)

+2

2.

Ca2+ has an oxidation number of

a)

+2

b)

-2

c)

+1

d)

-1

3.

What is the oxidation number of S8?

a)

0

b)

8

c)

6

d)

16

4.

Name the compound.

a)

nitrogen oxide

b)

nitrogen oxygen

c)

nitrogen dioxide

d)

dinitrogen monoxide

5.

Name the compound.

a)

copper sulfate

b)

copper (I) sulfate

c)

copper (II) sulfate

d)

copper monosulfate

6.

Give the chemical formula. Strontium Bromide

a)

Sr2BrSr_2Br  

b)

SrBr2SrBr_2  

c)

SrBrSrBr  

d)

Sr2Br2Sr_2Br_2  

7.

Give the formula. Sulfur Hexachloride.

a)

S6ClS_6Cl  

b)

SCL6SCL_6  

c)

SCl6SCl_6  

d)

SClSCl  

8.

Give the formula. Lead(IV) Carbonate

a)

PbCO3PbCO_3  

b)

Pb(CO3)2Pb\left(CO_3\right)_2  

c)

Pb(CO3)1Pb\left(CO_3\right)_1  

d)

Pb(CO3)4Pb\left(CO_3\right)_4  

9.

Why do elements form compounds?

a)

to change properties

b)

to lose protons

c)

to become an isotope

d)

to become stable

10.

What is the overall charge of an ionic compound?

a)

twice the number of valence electrons

b)

0

c)

the same as the oxidation number of the anion

d)

+8

11.

How many electrons are in a triple bond?

a)

6

b)

3

c)

8

d)

2

12.

What is an oxidation number?

a)

The number of protons that an element has.

b)

Charge of Atom or electrons gained/lost.

c)

A reaction between oxidation of an atom.

d)

The number of element ions.

13.

How does an atom become a charged ion?

a)

gaining or losing protons

b)

gaining or losing electrons

c)

gaining or losing neutrons

d)

by electrical shock

14.

What is a positively charged ion called?

(a)  

15.

What is a negatively charged ion called?

(a)  

16.

What is the oxidation number of Nitrogen?

a)

7

b)

-3

c)

5

d)

+1

17.

What is the oxidation number of Calcium?

a)

+2

b)

20

c)

-2

d)

40

18.

What is the oxidation number of Aluminum?

a)

13

b)

-3

c)

+3

d)

0

19.

What is the ionic symbol and charge for Selenium?

a)

Se-2

b)

Se+2

c)

Se-3

d)

Se+3

20.

What is the name for the chemical formula

KF

a)

Potassium fluoride

b)

Potassium fluorine

c)

Fluorine potasside

d)

Potassium fluorate

21.

What is the name for the chemical formula Na2S?

a)

Sodium Sulfide

b)

Sodium Sulfate

c)

Sodium Sulfite

d)

Disodium Sulfide

22.

Write the formula for Barium Nitride?

a)

Ba2N3

b)

Ba3N2

c)

BaN

d)

BaN3

23.

Nitrate

a)
NO-
b)
NO2-
c)
NO3-
d)
NO4-
24.

Chromate

a)
CrO42-
b)
CrO32-
c)
CrO22-
d)
CrO2-
25.

OH–

a)

hydrogen carbonate

b)

oxonium

c)

hydroxide

d)

acetate

26.

PO43–

a)

phosphorus tetroxide

b)

phosphate

c)

sulphate

d)

hydroxide

27.

Sulfate

a)

SO32–

b)

HSO4–

c)

SO42–

d)

CH3COO–

28.

Ammonium

a)

NH3+

b)

NH3

c)

CN+

d)

NH4+

29.

Phosphate

a)

PO3-

b)

PO34-

c)

PO43-

d)

PO43+

30.

Carbonate

a)

Cr2O42-

b)

CH3COO-

c)

CO32-

d)

CN-

31.

Acetate

a)

C4H2O3-

b)

Ac2H22-

c)

C2O4-

d)

C2H3O2-

32.

NH4+

a)
ammonium
b)
acetate
c)
sulfate
d)
arsenate
33.

NO3-

a)
ammonium
b)
nitrite
c)
nitrate
d)
nitrile
34.

C2H3O2-

a)
Ammonium
b)
acetite
c)
acetate
d)
arsenate
35.

CO32-

a)
bicarbonate
b)
carbonite
c)
carbonate
d)
chlorite
36.

SO42-

a)
Sulfite
b)
Sulfide
c)
Sulfate
d)
hydrogen sulfate
37.

Hydrogen Carbonate (bicarbonate)

a)

HCO3–

b)

CO32–

c)

CrO42–

d)

CN–

38.
ClO3-
a)
chlorite
b)
chlorate
39.
Cyanide
a)
CrO4-2
b)
Cr2O4-2
c)
CO3-2
d)
CN-
40.

Perchlorate

a)

ClO

b)

ClO4 -2

c)

ClO4 -1

d)

NaCl

41.

Chlorite

a)

ClO

b)

ClO3 -1

c)

ClO2 -1

d)

ClO3

42.

hypochlorite

a)

ClO2 1-

b)

ClO

c)

ClO2 -2

d)

ClO 1-

43.

permanganate

a)

MnO4 -3

b)

MnO4 1-

c)

MnO4

d)

MnO3 1-

44.

dichromate

a)

Cr2O7 -2

b)

Cr2O2 -2

c)

Cr2O7 -1

d)

Cr2-2

45.

Match the following to the correct type of bonding.

a)

HF

1.

Acid

b)

Na2SO4

2.

Ionic

c)

SF6

3.

Molecular Covalent

d)

Diamonds

4.

Network Covalent

e)

Fe3N2

5.

Transition Metal Ionic

46.

Match the following ions to the correct names

a)

hypochlorite

1.

ClO-

b)

chlorite

2.

ClO2-

c)

chlorate

3.

ClO3-

d)

perchlorate

4.

ClO4-

e)

chloride

5.

Cl-

47.

Match the following ions to the correct names

a)

sulfite

1.

SO32-

b)

sulfate

2.

SO42-

c)

hydrogen sulfate

3.

HSO4-

d)

sulfide

4.

S2-

48.
What is the name of N2O3
a)
Nitrogen trioxide
b)
Dinitrogen oxide
c)
Dinitrogen trioxide
d)
Nitrogen oxide
49.
What is the chemical formula for Tetrasulfur pentoxide?
a)
SO
b)
S4O
c)
S4O5
d)
S5O4
50.
What is the name of C3Cl8 ?
a)
Carbon octachloride
b)
Tricarbon octachloride
c)
Carbon trichloride
d)
Octacarbon trichloride
51.
What is the chemical formula for Nitrogen triiodide?
a)
NI
b)
N3I
c)
NI3
d)
None of these
52.
What is the name of Br6F10 ?
a)
Bromium fluoride
b)
Hexabromine fluoride
c)
Bromium decafluoride
d)
none of the above
53.
The chemical formula of tetraphosphorus heptaoxide is
a)
F₄O₁₀
b)
P₄O7
c)
PO
d)
P₁₀O₄
54.
What is the OFFICIAL name for H2O
a)
Hydrogen Oxide
b)
Oxygen Dinitride
c)
Agua
d)
Dihydrogen Monoxide
55.
Name the following ionic compound: Cr(NO2)3
a)
chromium nitrite
b)
chromium nitride
c)
chromium III nitride
d)
chromium III nitrite
56.
Name the following compound: FeCl3
a)
iron chloride
b)
iron III chloride
c)
iron chlorate
d)
iron III chlorate
57.
copper(II) chloride
a)
CuCl2
b)
CuCl
c)
Cu2Cl
d)
Cu2Cl2
58.
Name the ionic compound SnSe2
a)
Tin diselenide
b)
Tin (IV) Selenide
c)
Tin selenide
d)
Tin (II) triselenide
59.
Cu2CO3
a)
copper carbonate
b)
copper II carbonate
c)
copper I carbonate
d)
copper carbon oxide
60.
NH4Cl
a)
ammonium chloride
b)
ammonium chlorine
c)
nitrogen hydrogen chloride
d)
nitrogen chloride
61.
NH4Cl
a)
ammonium chloride
b)
ammonium chlorine
c)
nitrogen hydrogen chloride
d)
nitrogen chloride
62.
What explains the very high melting and boiling point of water
a)
Strong dipole-dipole bonds between water molecules
b)
Strong hydrogen bonds between water molecules
c)
Dispersion forces which are present in all molecules
d)
Asymmetrical shape of the polar bonds.
63.
Does HCl have hydrogen bonding?
a)
yes
b)
no
64.
Does CH4 have hydrogen bonding?
a)
yes
b)
no
65.
All molecules have London forces between them, but dipole-dipole and hydrogen bonding are so much stronger that when they are present we can ignore London forces.  Which of these has ONLY London forces?
a)
I2
b)
NH3
c)
OCl2
d)
SH2
66.

Which substance would have the weakest intermolecular forces of attraction?

a)

CH4

b)

NaCl

c)

H2O

d)

MgF2

67.
Intermolecular force present in HCl?
a)
dipole dipole
b)
dispersion
c)
H-bond
d)
ionic
68.

Which substance has the weakest intermolecular forces?

a)

Substance A, boiling point of 75 °C

b)

Substance B, boiling point of 105 °C

c)

Substance C, boiling point of 25 °C

d)

Substance d, boiling point of 45 °C

69.

The weaker the intermolecular forces of a substance the _____________ the boiling point

a)

higher

b)

lower

70.

Intermolecular forces for: CO2

a)

Dispersion Force

b)

Dipole dipole

c)

Hydrogen bonding

71.
London forces are stronger in heavier atoms or molecules, and weaker in lighter atoms or molecules.  Which of these has the strongest London forces?
a)
F2
b)
Br2
c)
I2
d)
Cl2
72.
What type of forces will the following molecule have?
a)
dispersion forces
b)
dipoles
c)
hydrogen bonding
73.
What forces will the following molecule have?
a)

dispersion

b)

dipole dipole

c)

hydrogen bonding

74.
How will the following molecule bond with itself?
a)

Dispersion Forces

b)

Dipole Dipole Forces

c)

Hydrogen bonding

75.

Which element is expected to demonstrate the strongest dispersion forces and have the highest boiling point?

a)

Ne

b)

Kr

c)

Xe

d)

Rn

76.

A compound has the molecular formula C30H62. The compound is known to have nonpolar molecules and exists as a solid at room temperature. Which is the biggest factor responsible for the properties of this compound?

a)

ion-molecule attractions

b)

London dispersion forces

c)

dipole-dipole attractions

d)

hydrogen bonding

77.

Which term represents an intermolecular force in a sample of water?

a)

hydrogen bonding

b)

covalent bonding

c)

metallic bonding

d)

ionic bonding

78.
Type of intermolecular force present in I2, Br2, and Cl2.
a)
dipole dipole
b)
H-bond
c)
dispersion
d)
metallic
79.
Intermolecular forces are the forces
a)
within molecules
b)
between molecules
80.
Which pair has the same empirical formula?
a)
NaCrO4 and Na2Cr2O7
b)
C2H4O2 and C6H12O6
c)
C3H6O3 and C2H6O2
d)
CH4 and C2H6
81.
A compound consists of 72.2% magnesium(Mg) and 27.8% nitrogen(N) by mass. What is the empirical formula?
a)
Mg4N3
b)
MgN2
c)
Mg3N2 
d)
MgN
82.
You are given the following percentages: 40.05% S and 59.95% O. Find the empirical formula for these elements.
a)
SO
b)
SO2
c)
SO3
d)
SO4
83.
What is the molecular formula if the empirical formula is CH2O and the molecular molar mass is 180.18?
a)
CH2O
b)
C2H4O2
c)
C4H8O4
d)
C6H12O6
84.
Given the following: 42.07% Na, 18.89% P, and 39.04% O, determine the empirical formula.
a)
 NaPO2
b)
Na2PO3
c)
Na3PO4
d)
NaPO4
85.
What is the molecular formula for a compound with the empirical formula: K2SO4 and a molecular mass of 696g.
a)
K2SO4 
b)
K8SO16
c)
K8S4O8 
d)
K8S4O16 
86.
What is the empirical formula if you have 81.82% carbon and 18.18% hydrogen?
a)
C3H8
b)
CH4
c)
C2H2
d)
C4H10
87.
Glycerol has a molar mass of 92.09g/mol. Its percent composition is: 39.12% C, 8.75% H, and 51.12% O. What is the molecular formula for glycerol?
a)
C2H3O2
b)
CH2O
c)
C2H4O2
d)
C3H8O3
88.
Whats the empirical formula of a molecule containing 18.7% of Lithium, 16.3% of Carbon and 65.0% of oxygen?
a)
CO2Li3
b)
Li2CO3
c)
Li3CO2
d)
LiCO5
89.
Given the following: 42.07% Na, 18.89% P, and 39.04% O, determine the empirical formula.
a)
NaPO2
b)
Na2PO3
c)
Na3PO4
d)
NaPO4
90.
What is the percentage of iron in iron(III)oxide?
a)
30%
b)
70%
c)
40%
d)
60%
91.
Find the percent composition of Cu2S?
a)
%Cu= 67.987 %S= 32.013
b)
%Cu= 79.854   %S= 20.145
c)
%Cu= 35.946   %S= 64.054
92.
A compound consists of 72.2% magnesium(Mg) and 27.8% nitrogen(N) by mass. What is the empirical formula?
a)
Mg4N3
b)
MgN2
c)
Mg3N2 
d)
MgN
93.
Which of the following is considered an empirical formula?
a)
CH3COOH
b)
C6H12O6
c)
H2O
94.
What is the percentage of oxygen in carbon dioxide? (CO2)
a)
27.3%
b)
72.7%
c)
30%
d)
70%
95.

All acids have what element in the front of their formula?

a)

Hydrogen

b)

Helium

c)

Chlorine

d)

Oxygen

96.

If an anion ends in "ite", the acid ends in

a)

ic

b)

ate

c)

ous

d)

ide

97.

HC2H3O2

a)

acetic acid

b)

acetate acid

c)

acetous acid

d)

acetide acid

98.

Binary acids have the prefix

a)

hydra

b)

hydro

c)

di

d)

hydride

99.

What is the charge of a H ion?

a)

0 (nuetral)

b)

+1

c)

-1

d)

-3

100.

HF

a)

hydrafluoric acid

b)

fluoric acid

c)

hydrofluoric acid

d)

hydrofluorine acid

101.

If the acid ends in "ous", the anion had to end in

a)

ite

b)

ate

c)

ide

d)

ic

102.

If an anion ends in "ate", the acid name ends in

a)

ide

b)

ite

c)

ic

d)

ous

103.

nitric acid

a)

HN

b)

HNO

c)

HNO3

d)

HNO2

104.

HClO

a)

chloric acid

b)

perchloric acid

c)

hydrochloric acid

d)

hypochlorous acid

105.

Which of the following has polar bonds but a zero dipole moment? Draw out the structure for help!

a)

SO2

b)

H2S

c)

CO32-

d)

CH4

106.

Emission spectra (bright line spectra) are created when electrons move from ___.

a)

higher to lower energy levels.

b)

lower to higher energy levels.

c)

s orbitals to p orbitals.

d)

one atom to a different atom.

107.

In which state does an electron have the least amount of energy?

a)

Excited state

b)

Ground state

c)

Orbital

d)

Bohr model

108.

Match the type of orbital with the value of the angular momentum quantum number, l.

a)

s

1.

l = 0

b)

p

2.

l = 1

c)

d

3.

l = 2

d)

f

4.

l = 3

109.

Match the quantum number with its symbol.

a)

Principal Quantum Number

1.

n

b)

Angular momentum quantum number

2.

l

c)

Magnetic quantum number

3.

ml

d)

Spin quantum number

4.

ms

110.

Match the quantum number with what it tells us.

a)

Principal Quantum Number

1.

which shell

b)

Angular momentum quantum number

2.

which shape

c)

Magnetic quantum number

3.

which orbital

d)

Spin quantum number

4.

spin up or spin down

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