Question 1

What is the formula of a compound formed from the ions M1+ and X3-?

Accepted Answer

A)  M3X 
B)  MX3 
C)  MX 
D)  None of these 
A)  M3X 
B)  MX3 
C)  MX 
D)  None of these A

Question 2

When potassium and sulfur react to form potassium sulfide, an ionic compound,

Accepted Answer

A)  each sulfur atom loses two electrons. 
B)  each sulfur atom loses one electron. 
C)  each potassium atom loses one electron. 
D)  each potassium atom loses two electrons. 
A)  each sulfur atom loses two electrons. 
B)  each sulfur atom loses one electron. 
C)  each potassium atom loses one electron. 
D)  each potassium atom loses two electrons. C

Question 3

What is the formula of a compound formed from the ions M2+ and X2-?

Accepted Answer

A)  M2X 
B)  MX 
C)  M2X2 
D)  MX2 
A)  M2X 
B)  MX 
C)  M2X2 
D)  MX2 B

Question 4

What is the formula mass of ammonium phosphide, (NH4)3P?

Accepted Answer

A)  85.0 u 
B)  49.0 u 
C)  48.0 u 
D)  57.0 u 
A)  85.0 u 
B)  49.0 u 
C)  48.0 u 
D)  57.0 u

Question 5

Ion-dipole interactions are responsible for

Accepted Answer

A)  the dissolving of salt in water. 
B)  ice being less dense than water. 
C)  the ease of electrolysis of water. 
D)  metallic bonding in steel. 
A)  the dissolving of salt in water. 
B)  ice being less dense than water. 
C)  the ease of electrolysis of water. 
D)  metallic bonding in steel.

Question 6

The Lewis symbol   would be characteristic of which group?

Accepted Answer

A)  2A 
B)  4A 
C)  6A 
D)  1A 
A)  2A 
B)  4A 
C)  6A 
D)  1A

Question 7

Which of the following ions is not isoelectronic with the other three?

Accepted Answer

A)  Cl- 
B)  K+ 
C)  Br- 
D)  P3- 
A)  Cl- 
B)  K+ 
C)  Br- 
D)  P3-

Question 8

Electronegativity increases ______________ across a period and ______________ in a group.

Accepted Answer

A)  right to left; bottom to top 
B)  left to right; top to bottom 
C)  right to left; top to bottom 
D)  left to right; bottom to top 
A)  right to left; bottom to top 
B)  left to right; top to bottom 
C)  right to left; top to bottom 
D)  left to right; bottom to top

Question 9

When hydrogen, from Group 1A, unites with chlorine, it forms a(n) ______________ compound.

Accepted Answer

A)  ionic 
B)  metallic 
C)  covalent 
D)  organic 
A)  ionic 
B)  metallic 
C)  covalent 
D)  organic

Question 10

The Lewis symbol X• would be characteristic of which group?

Accepted Answer

A)  2A 
B)  4A 
C)  6A 
D)  1A 
A)  2A 
B)  4A 
C)  6A 
D)  1A

Question 11

The formula mass of acetic acid, HC2H3O2, is ______________ u.

Accepted Answer

Question 12

The crucial test of whether a compound is ionic is whether, when melted, it ______________.

Accepted Answer

conducts e

Question 13

A carbon dioxide molecule is

Accepted Answer

A)  linear and polar. 
B)  angular and polar. 
C)  linear and nonpolar. 
D)  angular and nonpolar. 
A)  linear and polar. 
B)  angular and polar. 
C)  linear and nonpolar. 
D)  angular and nonpolar.

Question 14

A stream of a certain liquid compound is attracted to an electrically charged rod. The compound is probably

Accepted Answer

A)  metallic. 
B)  nonpolar covalent. 
C)  ionic. 
D)  polar covalent. 
A)  metallic. 
B)  nonpolar covalent. 
C)  ionic. 
D)  polar covalent.

Question 15

The ratio by mass of carbon to hydrogen in 100 g of a certain compound is 6 to 1. The ratio in 200 g of the same compound will be

Accepted Answer

A)  24 to 1. 
B)  6 to 1. 
C)  12 to 1. 
D)  none of these. 
A)  24 to 1. 
B)  6 to 1. 
C)  12 to 1. 
D)  none of these.

Question 16

Ammonia, NH3, boils at a higher temperature than phosphine, PH3. This is probably due to

Accepted Answer

A)  ammonia being more dense than PH3. 
B)  ammonia having the lower formula mass. 
C)  hydrogen bonding among the NH3 molecules. 
D)  ammonia being ionic and phosphine being covalent. 
A)  ammonia being more dense than PH3. 
B)  ammonia having the lower formula mass. 
C)  hydrogen bonding among the NH3 molecules. 
D)  ammonia being ionic and phosphine being covalent.

Question 17

A compound formed from atoms from the far left and the far right of the periodic table is probably a(n) ______________ compound.

Accepted Answer

The answer of A compound formed from atoms from the...

Question 18

The symbol for the element that is the major component of steel is ______________.

Accepted Answer

The answer of The symbol for the element that is...

Question 19

The sharing of two electrons by unlike atoms generally forms a(n) ______________ bond.

Accepted Answer

A)  ionic 
B)  metallic 
C)  nonpolar 
D)  polar covalent 
A)  ionic 
B)  metallic 
C)  nonpolar 
D)  polar covalent

Question 20

If aluminum arsenate is AlAsO4, the ionic charge on the arsenate ion must be ______________.

Accepted Answer

Exam 12: Chemical Bonding

What is the formula of a compound formed from the ions M1+ and X3-?

When potassium and sulfur react to form potassium sulfide, an ionic compound,

What is the formula of a compound formed from the ions M2+ and X2-?

What is the formula mass of ammonium phosphide, (NH4)3P?

Ion-dipole interactions are responsible for

The Lewis symbol would be characteristic of which group?

Which of the following ions is not isoelectronic with the other three?

Electronegativity increases ______________ across a period and ______________ in a group.

When hydrogen, from Group 1A, unites with chlorine, it forms a(n) ______________ compound.

The Lewis symbol X• would be characteristic of which group?

The formula mass of acetic acid, HC2H3O2, is ______________ u.

The crucial test of whether a compound is ionic is whether, when melted, it ______________.

A carbon dioxide molecule is

A stream of a certain liquid compound is attracted to an electrically charged rod. The compound is probably

The ratio by mass of carbon to hydrogen in 100 g of a certain compound is 6 to 1. The ratio in 200 g of the same compound will be

Ammonia, NH3, boils at a higher temperature than phosphine, PH3. This is probably due to

A compound formed from atoms from the far left and the far right of the periodic table is probably a(n) ______________ compound.

The symbol for the element that is the major component of steel is ______________.

The sharing of two electrons by unlike atoms generally forms a(n) ______________ bond.

If aluminum arsenate is AlAsO4, the ionic charge on the arsenate ion must be ______________.

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What is the formula of a compound formed from the ions M¹⁺ and X^3-?

What is the formula of a compound formed from the ions M²⁺ and X^2-?

What is the formula mass of ammonium phosphide, (NH₄)₃P?

Electronegativity increases across a period and in a group.

The formula mass of acetic acid, HC₂H₃O₂, is ______________ u.

Ammonia, NH₃, boils at a higher temperature than phosphine, PH₃. This is probably due to

If aluminum arsenate is AlAsO₄, the ionic charge on the arsenate ion must be ______________.