Question 1

Which substance has nonpolar covalent bonds?

Accepted Answer

A)   H2
B)   NO2
C)   NaBr
D)   COE) B) and C)
F) A) and D)

Question 2

If two atoms from the same element share three pairs of electrons in forming a molecule the bond is called a

Accepted Answer

A)   single covalent bond.
B)   double covalent bond.
C)   triple covalent bond.
D)   coordinate covalent bond.E) A) and D)
F) B) and C)

Question 3

The VSEPR theory is based on

Accepted Answer

A)   the neutralization of ionic charge in a molecule.
B)   the minimization of repulsion among valence electron pairs.
C)   the arrangement of core electrons in a molecule.
D)   the loss and gain of electrons based on electronegativity.E) B) and D)
F) A) and B)

Question 4

How many iron atoms are in the formula for iron(III)  oxide?

Accepted Answer

A)   1
B)   2
C)   3
D)   4E) All of the above
F) C) and D)

Question 5

In a covalent bond, the shared electrons are sometimes referred to as

Accepted Answer

A)   core electrons.
B)   bonding pairs.
C)   nonbonding pairs.
D)   neutral pairs.E) None of the above
F) A) and B)

Question 6

The prefix which means seven is

Accepted Answer

A)   hexa.
B)   hepta.
C)   octa.
D)   tetra.E) A) and C)
F) B) and D)

Question 7

Which substance has covalent bonds?

Accepted Answer

A)   KF
B)   NaF
C)   MgI2
D)   CO2E) A) and B)
F) A) and C)

Question 8

What is the formula of the compound with the name tetraphosphorus pentoxide?

Accepted Answer

The answer of What is the formula of the compound...

Question 9

The shape of a water molecule is

Accepted Answer

A)   linear.
B)   bent.
C)   tetrahedral.
D)   trigonal planar.E) B) and C)
F) All of the above

Question 10

The number of protons in a cation must always be ________ the number of electrons.

Accepted Answer

The answer of The number of protons in a cation...

Question 11

Draw the electron dot formula for carbon monoxide, CO.

Accepted Answer

The electron dot formula, also known as ...

Question 12

What is the name of the compound with the formula, K2S?

Accepted Answer

Question 13

Which one of the following compounds does NOT obey the "octet rule"?

Accepted Answer

A)   CO2
B)   CH4
C)   SCl6
D)   NH3E) B) and D)
F) All of the above

Question 14

Which of the following compounds is NOT polar?

Accepted Answer

A)   CBr4
B)   CH2F2
C)   NF3
D)   NH2IE) A) and D)
F) None of the above

Question 15

The correct formula for lithium acetate is

Accepted Answer

A)   LiC2H3O2.
B)   Li3C2H3O2.
C)   Li2C2O3H2.
D)   Li(C2H3O2) 2.E) All of the above
F) None of the above

Question 16

Sodium hydroxide is commonly known as lye. The formula of sodium hydroxide is

Accepted Answer

A)   NaOH.
B)   Na2OH.
C)   Na(OH) 2.
D)   SOH.E) None of the above
F) A) and B)

Question 17

In a molecule of nitrogen, N2, the nitrogen atoms are bonded to each other by

Accepted Answer

A)   an ionic bond.
B)   a single covalent bond.
C)   a double covalent bond.
D)   a triple covalent bond.E) C) and D)
F) A) and B)

Question 18

A central atom that has tetrahedral geometry will have a total of

Accepted Answer

A)   4 electron sets and 0 lone pairs.
B)   3 electron sets and 1 lone pairs.
C)   2 electron sets and 1 lone pairs.
D)   3 electron sets and 0 lone pairs.E) None of the above
F) B) and C)

Question 19

If a central atom has four electron sets attached to it, the geometry about the central atom is

Accepted Answer

A)   linear.
B)   trigonal planar.
C)   tetrahedral.
D)   pyramidal.E) C) and D)
F) None of the above

Question 20

The calcium metal is needed for healthy bones and teeth.

Accepted Answer

A) True 
 B)False

Exam 4: Chemical Bonds

Which substance has nonpolar covalent bonds?

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What is the name of the compound with the formula, K2S?

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Which substance has covalent bonds?

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The shape of a water molecule is

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The VSEPR theory is based on

Correct AnswerverifiedShow Answer

Which of the following compounds is NOT polar?

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In a covalent bond, the shared electrons are sometimes referred to as

Correct AnswerverifiedShow Answer

The prefix which means seven is

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If two atoms from the same element share three pairs of electrons in forming a molecule the bond is called a

Correct AnswerverifiedShow Answer

In a molecule of nitrogen, N2, the nitrogen atoms are bonded to each other by

Correct AnswerverifiedShow Answer

The number of protons in a cation must always be ________ the number of electrons.

Correct AnswerverifiedShow Answer

Draw the electron dot formula for carbon monoxide, CO.

Correct AnswerAnswered by ExamLex AIThe electron dot formula, also known as ...View AnswerShow Answer

How many iron atoms are in the formula for iron(III) oxide?

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If a central atom has four electron sets attached to it, the geometry about the central atom is

Correct AnswerverifiedShow Answer

A central atom that has tetrahedral geometry will have a total of

Correct AnswerverifiedShow Answer

The calcium metal is needed for healthy bones and teeth.

Correct AnswerverifiedShow Answer

The correct formula for lithium acetate is

Correct AnswerverifiedShow Answer

Sodium hydroxide is commonly known as lye. The formula of sodium hydroxide is

Correct AnswerverifiedShow Answer

Which one of the following compounds does NOT obey the "octet rule"?

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What is the formula of the compound with the name tetraphosphorus pentoxide?

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What is the name of the compound with the formula, K₂S?

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In a molecule of nitrogen, N₂, the nitrogen atoms are bonded to each other by

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The electron dot formula, also known as ...
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