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GC: Q3 Final Review

Total questions: 105

Worksheet time: 2hrs 45mins

Name
Class
Date
1.

In a covalent bond, atoms (a)   electrons.

Choose from the below words

gain

lose

share
2.

A ​ (a)   covalent bond occurs when electrons are (b)   ​ (c)   , creating ​ (d)   charged areas called ​ (e)   .

Choose from the below words

equally

polar
shared
unequally
partially
dipoles
ionic
nonpolar
transferred
completely
3.

The atom closer to the electrons in a polar molecule develops ______________.

a)

a partially positive charge

b)

a partially negative charge

c)

no charge

d)

a full positive charge

e)

a full negative charge

4.

_____________ is tendency of an atom to attract electrons to itself in a bond.

a)

electrogravity

b)

electromagnetism

c)

electronegativity

d)

electron transfer

5.

Hydrogen forms a covalent bond with chlorine. Which atom in the resulting molecule will develop a negative dipole?

a)

hydrogen

b)

Chlorine

c)

neither

d)

both

6.

Which of these symbols is used to represent a partial charge in a polar molecule?

a)
b)
c)
d)
7.

Organize the following molecules as polar or nonpolar.

Categorize the following

hydrogen

silicon dioxide, SiO2

boron trifluoride, BF3

ethene, C₂H₄

ethanol, C₂H₅OH

ammonia, NH3

ammonium, NH4+

sulfur dioxide, SO2

formaldehyde, CH₂O

Nonpolar
Polar
8.

Sulfur and oxygen combined to form sulfur dioxide. What is the electronegativity difference between the two atoms?

(a)  

9.

Which element will have the partial negative dipole in phosgene, COCl2?

a)

carbon

b)

chlorine

c)

oxygen

d)

it is a nonpolar.

10.

Which of the bonds between the following elements are polar? (Select all that apply.)

a)

fluorine and phosphorus

b)

sulfur and bromine

c)

oxygen and chlorine

d)

silicon and sulfur

e)

astatine and carbon

11.

Match the following shapes to their Names

a)
1.

Trigonal Planar

b)
2.

Tetrahedral

c)
3.

Trigonal Pyrimidal

d)
4.

Linear

e)
5.

Bent

12.

Which of the following shapes will have lone pairs on the central atom? (Select all that apply)

a)

Trigonal Planar

b)

Trigonal Pyramidal

c)

Bent

d)

Linear

13.

A lone pair is defined as:

a)

A pair of bonding electrons

b)

One non-bonding electron

c)

A pair of non-bonding electrons

d)

A pair of electrons on the central atom

14.

What does the VSEPR theory predict?

a)

Bond Strength

b)

Polarity

c)

Molecular Shape

d)

Electronegativity

15.
Which molecule would have this molecular geometry?
a)
BF3
b)
CH4
c)
PCl5
d)
CO2
16.

Which molecule could this be?

a)

BF3

b)

CH4

c)

H2O

d)

CO2

17.

Which molecule could this be?

a)
CH4
b)
CO2
c)
PCl5
d)
BF3
18.

Which compound is represented by the given model?

a)
CO2
b)
NH3
c)
H2S
d)
CH4
19.

Which compound does the provided model match?

a)

H2O

b)

NH3

c)

CO2

d)

CH4

20.

What would be the molecular geometry of PH3?

a)

Trigonal Pyramidal

b)

Trigonal Bipyramidal

c)

Bent

d)

Linear

21.

What is the molecular shape of the structure shown here? (BCl3)

a)

linear

b)

trigonal planar

c)

tetrahedral

d)

trigonal pyramidal

22.

What is the molecular shape represented by the Lewis structure for water (H2O)?

a)

tetrahedral

b)

trigonal planar

c)

bent

d)

trigonal pyramidal

23.

What is the molecular shape of the structure shown here? (NH4+)

a)

linear

b)

trigonal planar

c)

tetrahedral

d)

trigonal pyramidal

24.

Both Carbon Dioxide and water have (a)   atoms bonded to the central atom. Carbon Dioxide (CO2) is a (b)   molecule, while water (H2O) is a (c)   molecule because water has (d)   on the central atom.

Choose from the below words

two

Linear

Bent

Lone Pairs

Three

Double Bonds

Trigonal Planar

25.

Think about how many electron domains are around the central atom. Place these structures in order from LEAST electron domains to MOST electron domains.

a)

Linear

b)

Trigonal Planar

c)

Tetrahedral

1)
2)
3)
26.

Think about how many electron domains are around the central atom. Place these structures in order from LEAST electron domains to MOST electron domains.

a)

Linear

b)

Bent

c)

Trigonal Pyramidal

1)
2)
3)
27.

Which Lewis Structure would be linear? Mark all that apply

a)
b)
c)
d)
28.

Which Structure has a different shape than the others?

a)
b)
c)
d)
29.

The VSEPR theory states that electrons will:

a)

Try to move as far apart as possible

b)

Form the fewest bonds possible

c)

Have an equal number of bonds on all atoms

d)

Have larger bond angles to accommodate larger elements

30.

How many electron domains are around the central atom when determining molecular geometry in this structure?

a)

1

b)

2

c)

3

d)

4

31.

When determining molecular geometry, how many electron domains are there around the central atom of this structure?

a)

1

b)

2

c)

3

d)

4

32.

Place the given in the correct bond angle category.

Categorize the following

H₂O

CH₂Cl₂

CH₂S

BF₃

CS₂

EDG: trigonal planar

MG: bent

MG: tetrahedral

EDG: linear

104°
109.5°
120°
180°
33.
According to the octet rule most elements need _______ valence electrons.
a)
2
b)
8
c)
6
d)
18
34.
Hydrogen needs _____ electrons in its valence shell to be stable.
a)
4
b)
6
c)
8
d)
2
35.

Which of the following is the correct Lewis structure for the fluorine molecule?

a)
A
b)
B
c)
C
d)
D
36.
What is the correct structure for BF3?
a)

b)

c)

d)

37.
How many valence electrons are in Phosphorus?
a)
15
b)
4
c)
5
d)
31
38.

How many electrons does each bond line represent?

a)
1
b)
2
c)
3
d)
4
39.
When writing Lewis Structures, only __________ electrons are used.
a)
Inner shell
b)
Core 
c)
Valence
d)
Stable
40.

Which is the correct Lewis structure for ammonia, NH3?

a)

b)

c)

d)

41.

Which is the correct molecular structure for carbon dioxide?

a)

b)

c)

d)

42.

The given Lewis structure for CH2O is incorrect. Label each INCORRECT area so that the image could be redrawn correctly.

a)

three lone pair

b)

two lone pair

c)

single bond

d)

double bond

e)

triple bond

f)

one lone pair

1
2
1)
2)
43.
Which of the following is an acceptable Lewis structure for CH3Cl?
a)

b)

c)

d)

44.
Which of the following is the correct Lewis structure for water?
a)
A
b)
B
c)
C
45.
Which of the following is the correct Lewis structure for the compound PBr3?
a)

b)

c)

d)

46.

Three pairs of electrons are shared in a (a)   .

Choose from the below words
dingle bond
double bond
triple bond
47.

Which of the following will be attached to the central atom of the carbonate ion, CO32-? (Select all that apply.)

a)

single bond

b)

double bond

c)

triple bond

d)

lone pair

48.

Which of the following compounds has only single bonds? (Select all that apply.)

a)

N2

b)

O2

c)

H2

d)

CH4

49.

NH3 has how many lone pairs?

a)

0

b)

1

c)

2

d)

3

50.

CCl4 has how many double bonds?

a)

0

b)

1

c)

2

d)

3

51.

What kind of bond is between the carbon and nitrogen atoms in HCN?

a)

Single

b)

Double

c)

Triple

52.

A ​ (a)   atom cannot be a central atom because it fulfills the octet rule with ​ (b)   valence electrons and can only form ​ (c)   single bond.

Choose from the below words
hydrogen
two
one
carbon
oxygen
eight
three
helium
53.

​ (a)   molecules are found in nature as pairs of two atoms of the same type covalently bonded together.

Choose from the below words
Diatomic

Monatomic

Polyatomic

Network

54.

Place the chemicals into the category that best describes the types of bonds each chemical has.

Categorize the following

CH₄

N₂O₄

P₄S₁₀

SiO₂

CaCl₂

Fe₂O₃

AlBr₃

PbF₄

Au₃N

CuZn

AlMn

AuAg

Covalent Bonds
Ionic Bonds
Metallic Bonds
55.
Why do bonds form?
a)
To fill the valence shell of electrons for the elements involved
b)
to release energy stored in the bonds
c)
because whenever you mix two chemicals, there will be a reaction
d)
because of attraction
56.
A substance which has a high melting point, conducts electricity when dissolved in water, and has a crystalline structure probably has what type of bond?
a)
Ionic
b)
Metallic
c)
Covalent
d)
Crystalline
57.

Each bond type is represented by FIVE properties. Organize these options into the correct types of bonds.

Categorize the following

Electrons localized between atoms

Electrons transferred

Electrons free mobility

nonmetals only

metals and nonmetals

metals only

nonmetals and metalloids

always a poor conductor of electricity

a good conductor of electricity when dissolved in water

always a good conductor of electricity

ductile

low MP

forms crystalline solids

malleable

high MP and BP

Covalent Bond
Ionic Bond
Metallic Bond
58.
What type of bond is illustrated above?
a)
Metallic
b)
Ionic
c)
Covalent
d)
Wiggly
59.
A solid substance is an excellent conductor of electricity. The chemical bonds in this substance are most likely?
a)
ionic, because the valence electrons are shared between atoms
b)
covalent, because the valence electrons are mobile
c)
metallic, because the valence electrons are stationary
d)
metallic, because the valence electrons are mobile
60.

​ (a)   bonds are formed through ​ (b)   attraction after ​ (c)   transfer from one atom to another.

Choose from the below words

metallic

nonpolar covalent
ionic
electrostatic
electrons
shared
polar covalent
metallic
ions
61.

Which subatomic particle participates in chemical reactions?

a)

electron

b)

proton

c)

neutron

d)

ion

62.

​ (a)   bonds are formed by sharing ​ (b)   between two atoms.

Choose from the below words

ionic

metallic

covalent
ions
electrons
electrostatic
ductile
63.

A compound is made of two nonmetals. It is

a)

ionic

b)

metallic

c)

covalent

64.

A compound forms between a metal and a nonmetal. It is

a)

ionic

b)

metallic

c)

covalent

65.

A compound forms between a metalloid and a nonmetal. It is

a)

ionic

b)

metallic

c)

covalent

66.

A bond forms between a metal and a metal. What type of bond is it?

a)

ionic

b)

metallic

c)

covalent

67.

Ionic compounds are held together by (a)  

Choose from the below words

intermolecular forces

electrostatic forces

magnetic forces

nuclear forces

shared forces
68.

A compound that is a poor conductor and has low melting and boiling points is most likely

a)

ionic

b)

metallic

c)

covalent

69.

Which chemical is held together by electrostatic forces?

a)

NO2

b)

CaSO4

c)

Aluminum

d)

P4O10

70.

Which chemical has a very low melting point?

a)

sodium chloride

b)

copper (II) sulfate

c)

sulfur dioxide

d)

calcium

71.

Which solid is a good conductor of heat or electricity?

a)

sodium chloride

b)

copper (II) sulfate

c)

glucose

d)

iron

72.

Which compound would be a good conductor of electricity when in solution?

a)

lithium

b)

diphosphorus tetrachloride

c)

silicon dioxide

d)

sodium chloride

73.

The respective coefficients for the following reaction are (a)   . (Separate coefficients by commas and NO spaces).

Al2(SO4)3 + Ca(OH)2 → Al(OH)3 + CaSO4

74.

Which of the following is NOT evidence of a chemical reaction?

a)

Formation of a precipitate

b)

Production of gas

c)

Change in temperature

d)

Change in state of matter

75.
A chemical reaction is...
a)
when a substance is mixed with another substance
b)
when a substance undergoes a change to form a new substance
c)
when a substance is dissolved into another substance
d)
when a substance is heated or exposed to another substance
76.
Translate the following word equation: 
Liquid nitrogen and oxygen gas combine to form nitrogen monoxide gas. 
a)

N(g) + O(g) → NO(g)

b)

N2(g) + O2(g) → N2O2(g)

c)

N2(g) + O2(g) → 2NO(g)

d)

2N(g) + O2(g) → 2NO(g)

77.
Aqueous means...
a)
dissolved in water/solution
b)
water
c)
liquid
d)
plasma
78.

Mass cannot be ____ nor _____.

a)

made, changed

b)

created, destroyed

c)

rearranged, unmade

d)

stagnant, unchanging

79.

Balance the following equation: ____MgO(s) + ____H2O(l) → ____Mg(OH)2(s)

a)

1,1,1

b)

1,2,2

c)

2,3,4

d)

2,2,2

80.
What type of reaction is the following:
CH4 + O2 → CO2 + 2H2O
a)
double replacement
b)
single replacement 
c)
combustion
d)
synthesis
81.
A precipitate is...
a)

a solid that falls out of an aqueous solution

b)

a reactant in a reaction

c)

a clear substance

d)

the mass of a product

82.

The following is an example of a (a)   reaction.

Sb + I2 →

Choose from the below words
synthesis
single displacement
double displacement
decomposition
combustion
83.

The following is an example of a ​ (a)   reaction.

Li + H2O →

Choose from the below words
single displacement
double displacement
decomposition
combustion
synthesis
84.

The following is an example of a ​​ (a)   reaction.

AlCl3 →

Choose from the below words
decomposition
double displacement
combustion
synthesis
single displacement
85.

The following is an example of a ​​ (a)   reaction.

C6H12 + O2 →

Choose from the below words
combustion
double displacement
synthesis
single displacement
decomposition
86.

The following is an example of a ​​ (a)   reaction.

AlCl3 + Na2CO3 →

Choose from the below words
double displacement
synthesis
single displacement
decomposition
combustion
87.

The following is an example of a ​​ (a)   reaction.

HNO3 + Ba(OH)2 →

Choose from the below words
double displacement
synthesis
single displacement
decomposition
combustion
88.

The following is an example of a ​​ (a)   reaction.

Pb(NO3)2 + Al →

Choose from the below words
single displacement
synthesis
decomposition
combustion
double displacement
89.

What type of reaction is described in the following scenario?

Aqueous solutions of ammonium chloride and lead(II) nitrate produce lead(II) chloride precipitate and aqueous ammonium nitrate.

a)

combustion

b)

decomposition

c)

double displacement

d)

single displacement

e)

synthesis

90.

What type of reaction is described in the following scenario?

Iron metal reacts with aqueous silver nitrate to produce aqueous iron(III) nitrate and silver metal.

a)

combustion

b)

decomposition

c)

double displacement

d)

single displacement

e)

synthesis

91.

What type of reaction is described in the following scenario?

Solid potassium nitride was heated yielding solid potassium and nitrogen gas.

a)

combustion

b)

decomposition

c)

double displacement

d)

single displacement

e)

synthesis

92.

The respective coefficients for the following reaction are (a)   . (Separate coefficients by commas and NO spaces).

P4O10 + H2O → H3PO4

93.

The respective coefficients for the following reaction are (a)   . (Separate coefficients by commas and NO spaces).

SiCl4 + H2O → H4SiO4 + HCl

94.

The respective coefficients for the following reaction are (a)   . (Separate coefficients by commas and NO spaces).

Al + HCl → AlCl3 + H2

95.

The respective coefficients for the following reaction are (a)   . (Separate coefficients by commas and NO spaces).

Na2CO3 + HCl → NaCl + H2O + CO2

96.

The respective coefficients for the following reaction are (a)   . (Separate coefficients by commas and NO spaces).

C7H6O2 + O2 → CO2 + H2O

97.

The respective coefficients for the following reaction are (a)   . (Separate coefficients by commas and NO spaces).

Fe2(SO4)3 + KOH → K2SO4 + Fe(OH)3­

98.

The respective coefficients for the following reaction are (a)   . (Separate coefficients by commas and NO spaces).

Ca3(PO4)2 + SiO2 → P4O10 + CaSiO3

99.

The respective coefficients for the following reaction are (a)   . (Separate coefficients by commas and NO spaces).

KClO3 → KCl + O2

100.

The respective coefficients for the following reaction are (a)   . (Separate coefficients by commas and NO spaces).

Al2(SO4)3 + Ca(OH)2 → Al(OH)3 + CaSO4

101.
How many electrons are shared in a double bond?
a)
2
b)
4
c)
6
d)
8
102.
What two types of atoms make a covalent bond?
a)
2 Nonmetals
b)
1 Nonmetal & 1 Metal
c)
2 Metals
d)
2 Noble Gases
103.
Three pairs of electrons are shared in a
a)
Single bond
b)
Double bond
c)
Triple bond
104.

Match the following

a)

Covalent Bond

1.

Formed between two nonmetals

b)

Ionic Bond

2.

Formed between metal and nonmetal

c)

Lone Pair

3.

2 electrons not shared by atoms in a covalent compound

d)

Line

4.

How 2 bonding electrons are shown in a dot diagram

e)

Dots

5.

How lone pair electrons are shown in a dot diagram

105.

If an atom ​ (a)   electrons, it will become negative.

If an atom ​ (b)   electrons, it will become positive.

Choose from the below words
gains
loses
destroys
creates

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