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Chemical Bonding TEST

Total questions: 93

Worksheet time: 1hrs 27mins

Name
Class
Date
1.

When a sodium atom reacts with a chlorine atom to form a compound, the electron configurations of the ions forming the compound are the same as those in which noble gas atoms?

a)

krypton and neon

b)

krypton and argon

c)

neon and helium

d)

neon and argon

2.

Which electron-dot diagram represents H₂?

a)

A

b)

B

c)

C

d)

D

3.

Which is the correct electron-dot formula for a molecule of chlorine?

a)

A

b)

B

c)

C

d)

D

4.

A barium atom attains a stable electron configuration when it bonds with

a)

one chlorine atom

b)

two chlorine atoms

c)

one sodium atom

d)

two sodium atoms

5.

Which pair of elements below will form a compound with the greatest ionic character?

a)

Pb and F

b)

Ca and O

c)

Na and Cl

d)

Cs and N

6.

Which pair of elements forms a bond with the least ionic character?

a)

P–Cl

b)

Br–Cl

c)

H–Cl

d)

O–Cl

7.

Based on your Reference Tables, the atoms of which of these elements have the strongest attraction for electrons in a chemical bond?

a)

N

b)

Na

c)

P

d)

Pt

8.

As a chlorine atom becomes a negative ion, the atom

a)

gains an electron and its radius increases

b)

gains an electron and its radius decreases

c)

loses an electron and its radius increases

d)

loses an electron and its radius decreases

9.

Which compound contains ionic bonds?

a)

NO

b)

NO₂

c)

CaO

d)

CO₂

10.

The bonds in BaO are best described as

a)

covalent, because valence electrons are shared

b)

covalent, because valence electrons are transferred

c)

ionic, because valence electrons are shared

d)

ionic, because valence electrons are transferred

11.

A substance that has a melting point of 1074 K conducts electricity when dissolved in water, but does not conduct electricity in the solid phase. The substance is most likely

a)

an ionic solid

b)

a network solid

c)

a metallic solid

d)

a molecular solid

12.

A solid substance was tested in the laboratory. The test results are listed below. - dissolves in water - is an electrolyte (conducts electricity) - melts at a high temperature Based on these results, the solid substance could be

a)

Cu

b)

CuBr₂

c)

C₆H₁₂O₆

13.

A substance was found to be a soft, non-conducting solid at room temperature. The substance is most likely

a)

a molecular solid

b)

a network solid

c)

a metallic solid

d)

an ionic solid

14.

Which two substances are covalent compounds?

a)

C₆H₁₂O₆(s) and KI(s)

b)

C₆H₁₂O₆(s) and HCl(g)

c)

KI(s) and NaCl(s)

d)

NaCl(s) and HCl(g)

15.

Which molecule will have a double covalent bond?

a)

F₂

b)

O₂

c)

Cl₂

d)

N₂

16.

Which type of bonding is found in all molecular substances?

a)

covalent bonding

b)

hydrogen bonding

c)

ionic bonding

d)

metallic bonding

17.

Which formula represents a molecular compound?

a)

HI

b)

KI

c)

KCl

d)

LiCl

18.

What is the maximum number of covalent bonds that a carbon atom can form?

a)

1

b)

2

c)

3

d)

4

19.

Which substance at STP conducts electricity because the substance contains mobile electrons?

a)

H₂

b)

He

c)

K

d)

Kr

20.

Which property best accounts for the conductivity of metals?

a)

the relatively high first ionization energy

b)

the malleability of most metals

c)

the free electrons in the valence energy levels

d)

the filled inner electron energy levels

21.

Which substance contains nonpolar covalent bonds?

a)

H₂

b)

H₂O

c)

Ca(OH)₂

d)

CaO

22.

The chemical bond in a hydrogen molecule is

a)

nonpolar covalent

b)

polar covalent

c)

ionic

d)

electrovalent

23.

Which electron-dot diagram represents a molecule that has a polar covalent bond?

a)

Option A

b)

Option B

c)

Option C

d)

Option D

24.

Which type of bond exists between an atom of carbon and an atom of fluorine?

a)

ionic

b)

metallic

c)

polar covalent

d)

nonpolar covalent

25.

Which structural formula represents a nonpolar symmetrical molecule?

a)

Option A

b)

Option B

c)

Option C

d)

Option D

26.

Why is a molecule of CO₂ nonpolar even though the bonds between the carbon atom and the oxygen atoms are polar?

a)

The shape of the CO₂ molecule is symmetrical.

b)

The shape of the CO₂ molecule is asymmetrical.

c)

The CO₂ molecule has a deficiency of electrons.

d)

The CO₂ molecule has an excess of electrons.

27.

In aqueous solution, a chloride ion is attracted to which end of the water molecule?

a)

the hydrogen end, which is the positive pole

b)

the hydrogen end, which is the negative pole

c)

the oxygen end, which is the positive pole

d)

the oxygen end, which is the negative pole

28.

Two fluorine atoms are held together by a covalent bond. Which statement correctly describes this bond?

a)

It is polar and forms a polar molecule.

b)

It is polar and forms a nonpolar molecule.

c)

It is nonpolar and forms a polar molecule.

d)

It is nonpolar and forms a nonpolar molecule.

29.

Based on the properties listed below, what type of bonding would be expected in the particles of this substance? (1) low melting point (2) nearly insoluble in water (3) poor conductor of electricity (4) relatively soft solid

a)

Ionic bonding

b)

Metallic bonding

c)

Covalent bonding

d)

Hydrogen bonding

30.

c) Explain why the particles of this substance are nonconductors of electricity.

a)

The particles have no free electrons or ions to carry charge.

b)

The particles are too large to move and conduct electricity.

c)

The particles are made of insulating material.

d)

The particles are in a gaseous state, preventing conduction.

31.

Base your answer to the following question on the information below. Explain why Lewis electron-dot diagrams are generally more suitable than electron-shell diagrams for illustrating chemical bonding.

a)

Lewis diagrams focus on valence electrons which are involved in bonding.

b)

Electron-shell diagrams show all electrons, making it complex.

c)

Lewis diagrams are simpler and highlight bonding interactions.

d)

Electron-shell diagrams are more detailed but less focused on bonding.

32.

In an ionic bond, electrons are ​ (a)   from the ​ (b)   to the ​ (c)   .

Choose from the below words
transferred
metal
nonmetal
weak
semimetal
shared
33.

LiBr is called

a)

lithium bromine

b)

lithium (I) bromine

c)

lithium bromide

d)

lithuim (I) bromide

34.

The name of FeCl₂ is

a)

iron chloride

b)

iron (II) chloride

c)

iron (I) chloride

d)

iron dichloride

35.

The name of the compound Ca3(PO4)2

a)

calcium phosphate

b)

tricalcium diphosphate

c)

calcium phosphorus oxide

d)

calcium phosphide

36.
How do the following two elements bond together?
K1+  S2- 
a)
KS
b)
K8S
c)
K6S3
d)
K2S
37.
The chemical formula of iron (III)bromide is
a)
FeBr
b)
Fe(III)Br
c)
FeBr₃
d)
Fe₂Br₃
38.
What is the formula for calcium phosphide?
a)
CaP
b)
Ca2P3
c)
Ca3P2
d)
Ca2P
39.

The name for Al(OH)3 is

a)

aluminum(III) hydroxide

b)

aluminum trihydroxide

c)

aluminum hydroxide

d)

monaluminum trihydroxide

e)

aluminum(I) hydroxide

40.

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

41.

The formula unit for a certain ionic compound contains parentheses. What must be true?

a)

The formula unit contains no polyatomic ions.

b)

The formula unit contains two different polyatomic ions.

c)

The formula unit contains more than one of the same polyatomic ion.

d)

The formula unit contains either a polyatomic cation or a polyatomic anion, but not both.

42.

Metals all typically form what charge?

a)

Varies within S, P, D, and F blocks

b)

Positive

c)

Negative

d)

Positive in S & P block varies in the D block

43.

Halogens all typically form what charge?

a)

Positive one

Written as a 1+ superscript

b)

Negative one, written as a -1 superscript

c)

Negative one, written as a 1- subscript

d)

Positive 1 written as a 1+ subscript

44.

The name of the compound Ca3(PO4)2

a)

calcium phosphate

b)

tricalcium diphosphate

c)

calcium phosphorus oxide

d)

calcium phosphide

45.

When naming a compound, which of these is written first?

a)

Metal

b)

Nonmetal

c)

Anion

d)

Cation

46.
Which of the following combinations would need roman numerals in the name?
a)
potassium + fluorine
b)
beryllium + oxygen
c)
boron + iodine
d)
silver + oxygen
47.
The chemical formula for tin (IV) oxide is written
a)
Sn2O4
b)
Ti2O4
c)
SnO2
d)
TiO2
48.

What is the formula for copper(I) sulfide?

a)

CuS3

b)

CuS4

c)

Cu2S

d)

CuS2

49.
What would be the proper chemical formula for combining Al3+ and Cl- :
a)
AlCl3
b)
Al3Cl
c)
AlCl
d)
Al3Cl3
50.
What is the correct name for C4H6?
a)
Carbon Hexahydride
b)
Pentacarbon Pentahydride
c)
Hexacarbon Tetrahydride
d)
Tetracarbon Hexahydride
51.
What is the correct name for NO?
a)
Mononitrogen Monoxide
b)
Nitrogen Monoxide
c)
Mononitrogen Dioxide
d)
Nitrogen Oxide
52.
What is the name of N2O3
a)
Nitrogen trioxide
b)
Dinitrogen oxide
c)
Dinitrogen trioxide
d)
Nitrogen oxide
53.
What is the correct formula for the compound, lithium oxide?
a)
LiO
b)
Li2O
c)
LiO2
d)
Li2O2
54.

Which of the following is NOT an ionic compound?

a)

CaO

b)

NaOH

c)

BaCl2

d)

Br2

55.
What is the name of Al(NO3)3?
a)
Aluminum trinitrate
b)
Monoaluminum nitrate
c)
Aluminum (III) nitrate
d)
Aluminum Nitrate
56.
The chemical compound for sodium phosphate would be:
a)
NaPO4
b)
Na2PO4
c)
Na3PO4
d)
Na(PO4)3
57.

Which of the following can conduct electricity in solid state?

a)

metals

b)

covalent compound

c)

ionic compound

58.

Which compound has high melting point?

a)

Ionic

b)

Covalent

59.

How are ionic bonds formed?

a)

transfer of electrons

b)

sharing of electrons

60.

Why do all bonds form?

a)

to fill the outermost energy level

b)

so an atom can be unstable

c)

so the number of protons and electrons can equal.

d)

so they can gain neutrons.

61.

When atoms gain or lose electrons, they are called

a)

Isotopes

b)

Atoms

c)

Ions

d)

Electrons

62.

What type of elements form cations?

a)

metals

b)

nonmetals

c)

metalloids?

63.

Salt is an example of what?

a)

ionic compound

b)

covalent compound

64.

Is the following compound ionic or molecular?

A material that contains two nonmetals

a)

Ionic

b)

Molecular

65.

Is the following compound ionic or molecular?

Ag2O

a)

Ionic

b)

Molecular

66.

Is the following compound ionic or molecular?

A material that forms a crystal lattice

a)

Ionic

b)

Molecular

67.

Is the following compound ionic or molecular?

A material with a high melting point

a)

Ionic

b)

Molecular

68.
When dissolved in water, the solution does NOT conduct electricity.
a)
ionic compounds
b)

molecular compounds

69.

Rank these compounds in order of most Covalent to least Covalent

a)

O2

b)

CH4

c)

NH3

d)

NaCl

e)

MgF2

1)
2)
3)
4)
5)
70.

Which of the following elements has the highest electronegativity?

a)

Fluorine

b)

Oxygen

c)

Chlorine

d)

Nitrogen

71.

What type of bond is formed between two nitrogen atoms in a nitrogen molecule (N2)?

a)

Single covalent bond

b)

Double covalent bond

c)

Triple covalent bond

d)

Ionic bond

72.

Which of the following elements is most likely to form a cation in a chemical reaction?

a)

Oxygen

b)

Fluorine

c)

Sodium

d)

Chlorine

73.

What is the correct name for the compound with the formula Na2SO4?

a)

Sodium sulfate

b)

Sodium sulfide

c)

Sodium sulfite

d)

Sodium sulfide

74.

Which of the following compounds is likely to have the highest melting point?

a)

CH4

b)

NaCl

c)

H2O

d)

CO2

75.

Which of the following molecules contains a triple covalent bond?

a)

O₂

b)

N₂

c)

H₂

d)

Cl₂

76.

What is the name of the compound with the formula Na₂SO₄?

a)

sodium sulfate

b)

sodium sulfide

c)

sodium sulfite

d)

sodium sulfur

77.

Which type of bond is formed between two atoms of the same element?

a)

ionic

b)

metallic

c)

polar covalent

d)

nonpolar covalent

78.

Which of the following compounds is most likely to be a molecular solid?

a)

NaCl

b)

SiO₂

c)

CH₄

d)

Fe

79.

What is the correct name for the compound with the formula K₂SO₄?

a)

potassium sulfide

b)

potassium sulfate

c)

potassium sulfite

d)

potassium sulfur oxide

80.

When you have Br-Br, what is the polarity?

a)

Polar

b)

nonpolar

c)

Ionic

81.

Click on the more electronegative atom.

A
B
C
82.

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

83.

Nitrogen has (a)   valence electrons, which means it has ​ (b)   bonding places to make covalent bonds with other nonmetals

Choose from the below words
5
3
1
2
4
6
8
7
84.

Oxygen has ​ (a)   valence electrons, which means it has ​ ​ (b)   bonding places to make covalent bonds with other nonmetals

Choose from the below words
1
2
4
6
8
7
3
5
85.

Elements need ​​ ​ (a)   valence electrons to become stable when they form compounds, except for hydrogen, which only needs ​ (b)  

Choose from the below words
8
2
1
3
4
5
6
7
86.

Match the following to form true statements:

a)

When solid, ionic compounds

1.

cannot conduct electricity

b)

When melted ionic compounds

2.

can conduct electricity

c)

Ionic compounds have

3.

high melting and high boiling points

d)

There are many strong bonds

4.

between ions in an ionic compound.

e)

Elements in group 1 of the periodic table form ions

5.

with a charge of 1+

87.

Match the following

a)

Polyatomic Ion

1.

Ion that has more than one atom.

b)

Intramolecular Force

2.

attractions between atoms in a molecule

c)

Disacciates

3.

Breaks apart

d)

Crystal Lattice

4.

Geometric patterns of ionic compounds.

e)

Electronegativity

5.

Attraction for electrons.

88.

If an atom gains an electron, it becomes a(n) ​ (a)   which is ​ (b)   charged. If an atom loses an electron, it becomes a(n) ​ (c)   which is ​ (d)   charged.

Choose from the below words
anion
negatively
cation
positively
neutrally
89.

A metal (M) in group 2 forms a compound with a nonmetal in group 15 (X).

The formula for this ionic compound will be M​ (a)   X​ (b)  

Choose from the below words
3
2
1
4
0
90.

When two identical atoms, such as two oxygen atoms, bond, the resulting bond is​ (a)  

Choose from the below words
nonpolar covalent
polar covalent
ionic
metallic
91.

Label the type of bonds seen in the structure to the right

a)

Double Bond

b)

Triple Bond

c)

Single bond

d)

Quadruple Bond

1
2
1)
2)
92.

When two nonmetals do not share electrons evenly, the resulting covalent bond will be

a)

nonpolar

b)

polar

c)

ionic

d)

metallic

93.

​ (a)   covalent bonds are electrons shared​ (b)   . Electrons spend ​ (c)   time in the vicinity of one atom that the other.

Choose from the below words
Polar
unequally
equally
more
less
Non-Polar

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