Question 1

Atoms from an element in group VA are allowed to react with atoms from an element in group VIIIA.What type of compound is likely to form?

Accepted Answer

A) ionic 
B) covalent 
C) polar 
D) None of the above. 
A) ionic 
B) covalent 
C) polar 
D) None of the above. D

Question 2

What is the correct name for the ionic compound, CaF2?

Accepted Answer

A) calcium fluorine 
B) calcium fluoride 
C) calcium difluoride 
D) monocalcium difluoride 
A) calcium fluorine 
B) calcium fluoride 
C) calcium difluoride 
D) monocalcium difluoride B

Question 3

Atoms gain or lose electrons in order to attain a valence orbital arrangement like that of a noble gas.

Accepted Answer

A) True 
 B)False  True

Question 4

The subscript "2" in Mg(OH)2tells you that the charge of the hydroxide ion is (-2).

Accepted Answer

A) True 
 B)False

Question 5

The amount of energy released when wood is burned is

Accepted Answer

A) greater than the amount of solar energy absorbed during its formation. 
B) equal to the amount of solar energy absorbed during its formation. 
C) less than the amount of solar energy absorbed during its formation. 
D) greater or less than the amount of solar energy absorbed during its formation, depending on how it is burned. 
A) greater than the amount of solar energy absorbed during its formation. 
B) equal to the amount of solar energy absorbed during its formation. 
C) less than the amount of solar energy absorbed during its formation. 
D) greater or less than the amount of solar energy absorbed during its formation, depending on how it is burned.

Question 6

What kind(s) of bonding takes place in NaOH?

Accepted Answer

A) covalent 
B) ionic 
C) metallic 
D) both covalent and ionic 
A) covalent 
B) ionic 
C) metallic 
D) both covalent and ionic

Question 7

The breaking and making of chemical bonds can explain chemical reactions and energy flow.

Accepted Answer

A) True 
 B)False

Question 8

The element M forms a stable ionic compound MCl2.If M were allowed to react with bromine, the resulting compound would have the formula

Accepted Answer

A) MBr. 
B) M2Br. 
C) MBr2. 
D) there is not enough information to tell for sure. 
A) MBr. 
B) M2Br. 
C) MBr2. 
D) there is not enough information to tell for sure.

Question 9

Evidence of a chemical reaction includes

Accepted Answer

A) a color change. 
B) a change in temperature. 
C) the production of a gas. 
D) All of the above. 
A) a color change. 
B) a change in temperature. 
C) the production of a gas. 
D) All of the above.

Question 10

Three hydroxide ions are needed to form a neutral ionic compound with an aluminum ion.

Accepted Answer

A) True 
 B)False

Question 11

The -ide ending in nitrogen dioxide tells you that this is an ionic compound.

Accepted Answer

A) True 
 B)False

Question 12

A chemical bond that involves somewhat unequal sharing of electrons is called

Accepted Answer

A) ionic. 
B) covalent. 
C) polar. 
D) coordinate. 
A) ionic. 
B) covalent. 
C) polar. 
D) coordinate.

Question 13

Ionic bonds occur between atoms from adjacent groups.

Accepted Answer

A) True 
 B)False

Question 14

What type of chemical bond does the sharing of a pair of electrons form?

Accepted Answer

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

Question 15

The formation of an ionic bond

Accepted Answer

A) involves a transfer of one or more electrons. 
B) results in a release of energy. 
C) helps atoms achieve a noble gas electron arrangement. 
D) All of the above. 
A) involves a transfer of one or more electrons. 
B) results in a release of energy. 
C) helps atoms achieve a noble gas electron arrangement. 
D) All of the above.

Question 16

The representative elements have one to eight valence electrons.

Accepted Answer

A) True 
 B)False

Question 17

Ionic compounds are generally

Accepted Answer

A) white, crystalline solids. 
B) gaseous substances. 
C) syrupy liquids. 
D) amorphous solids. 
A) white, crystalline solids. 
B) gaseous substances. 
C) syrupy liquids. 
D) amorphous solids.

Question 18

Atoms gain or lose electrons in chemical reactions in order to increase their energy state.

Accepted Answer

A) True 
 B)False

Question 19

What is the formula when atoms of M and X (pictured below) react to form a stable ionic compound?

Accepted Answer

A) MX3 
B) M3X 
C) MX 
D) MX5 
A) MX3 
B) M3X 
C) MX 
D) MX5

Question 20

In an ionic compound, the metal

Accepted Answer

A) usually forms a negative ion. 
B) takes the -ide ending. 
C) has a Greek prefix like mono, di or tri. 
D) is written first. 
A) usually forms a negative ion. 
B) takes the -ide ending. 
C) has a Greek prefix like mono, di or tri. 
D) is written first.

Exam 9: Chemical Bonds

Atoms from an element in group VA are allowed to react with atoms from an element in group VIIIA.What type of compound is likely to form?

What is the correct name for the ionic compound, CaF2?

Atoms gain or lose electrons in order to attain a valence orbital arrangement like that of a noble gas.

The subscript "2" in Mg(OH)2tells you that the charge of the hydroxide ion is (-2).

The amount of energy released when wood is burned is

What kind(s) of bonding takes place in NaOH?

The breaking and making of chemical bonds can explain chemical reactions and energy flow.

The element M forms a stable ionic compound MCl2.If M were allowed to react with bromine, the resulting compound would have the formula

Evidence of a chemical reaction includes

Three hydroxide ions are needed to form a neutral ionic compound with an aluminum ion.

The -ide ending in nitrogen dioxide tells you that this is an ionic compound.

A chemical bond that involves somewhat unequal sharing of electrons is called

Ionic bonds occur between atoms from adjacent groups.

What type of chemical bond does the sharing of a pair of electrons form?

The formation of an ionic bond

The representative elements have one to eight valence electrons.

Ionic compounds are generally

Atoms gain or lose electrons in chemical reactions in order to increase their energy state.

What is the formula when atoms of M and X (pictured below) react to form a stable ionic compound?

In an ionic compound, the metal

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What is the correct name for the ionic compound, CaF₂?

The subscript "2" in Mg(OH)₂tells you that the charge of the hydroxide ion is (-2).

The element M forms a stable ionic compound MCl₂.If M were allowed to react with bromine, the resulting compound would have the formula