Question 1

Which element has the greatest electronegativity?

Accepted Answer

A)  Si
B)  P
C)  Cl
D)  Ar
E)  BrF) A) and B)
G) C) and E)

Question 2

How many nonbonding electrons are in CH4?

Accepted Answer

A)  0
B)  1
C)  2
D)  3
E)  8F) None of the above
G) B) and D)

Question 3

The common name of iron(III)chloride is ferric chloride.

Accepted Answer

A) True 
 B)False

Question 4

What is the name of the ion whose formula is NO3-?

Accepted Answer

A)  nitrogen trioxide ion
B)  nitrate ion
C)  ammonium ion
D)  sodium oxide ion
E)  nitride ionF) D) and E)
G) B) and E)

Question 5

What is the name of Fe2+ in the Stock system?

Accepted Answer

A)  iron 2 ion
B)  iron(II) ion
C)  ferric(II) ion
D)  ferrous 2+ ion
E)  iron cationF) B) and D)
G) All of the above

Question 6

A molecule of deoxyribose,an essential part of DNA,contains five carbon atoms,ten hydrogen atoms,and four oxygen atoms.How would the formula of deoxyribose be represented?

Accepted Answer

A)  5C10H4O
B)  C5H10O4
C)  C5H10O4
D)  C5H10O4
E)  All formulas are acceptable.F) D) and E)
G) A) and C)

Question 7

What is the Stock name of Cu+?

Accepted Answer

A)  cupric ion
B)  cuprous ion
C)  copper(I) ion
D)  copper(II) ion
E)  cuprate ionF) A) and E)
G) A) and B)

Question 8

What term describes the temperature at which a solid is converted into a liquid?

Accepted Answer

A)  critical point
B)  flash point
C)  sublimation point
D)  melting point
E)  boiling pointF) B) and C)
G) D) and E)

Question 9

Which element has the greatest electronegativity?

Accepted Answer

A)  H
B)  Cl
C)  O
D)  F
E)  NaF) All of the above
G) A) and B)

Question 10

Considering the electronegativity values indicated in the table,which covalent bond is the most polar?  CClFONH2.53.04.03.53.02.1\begin{array} { | c | c | c | c | c | c | } \hline \mathrm { C } & \mathrm { Cl } & \mathrm { F } & \mathrm { O } & \mathrm { N } & \mathrm { H } \\hline 2.5 & 3.0 & 4.0 & 3.5 & 3.0 & 2.1 \\hline\end{array}C2.5​Cl3.0​F4.0​O3.5​N3.0​H2.1​​

Accepted Answer

A)  C?H
B)  N?O
C)  Cl?F
D)  H?F
E)  F?F F) A) and D)
G) A) and E)

Question 11

The name of SnO2 is tin(II)oxide.

Accepted Answer

A) True 
 B)False

Question 12

Draw the Lewis structures of F2,O2 and N2.Which statement is true?

Accepted Answer

A)  All three molecules have a single bond between the atoms.
B)  B.Both O2 and N2 have double bonds connecting the atoms.
C)  Fluorine has the shortest bond between the two atoms.
D)  The bond between the nitrogen atoms in N2 is stronger than the bond in F2 and O2.
E)  All three molecules have triple bonds between the atoms.F) B) and E)
G) None of the above

Question 13

Emergency treatment of cardiac arrest victims sometimes involves injection of a calcium chloride (CaCl2) solution directly into the heart muscle.Which statement about the compound CaCl2 is FALSE?

Accepted Answer

A)  This compound is an ionic compound.
B)  The cation in this compound is Ca2+.
C)  The anion in this compound is Cl2−.
D)  There are two chloride ions in this compound.
E)  The net charge on this compound is zero.F) C) and E)
G) A) and E)

Question 14

Because the C-H bond in methane is polar,the CH4 molecule will also be polar.

Accepted Answer

A) True 
 B)False

Question 15

Six electrons shared between two atoms corresponds to a triple bond.

Accepted Answer

A) True 
 B)False

Question 16

A covalent bond involves which of the following?

Accepted Answer

A)  sharing of electrons between two atoms
B)  transfer of electrons between two atoms
C)  donation of protons from one atom to another
D)  electrostatic attraction between opposite charges
E)  sharing of protons between two atomsF) B) and C)
G) A) and E)

Question 17

What statement about the ammonia molecule,NH3,is FALSE?

Accepted Answer

A)  The molecule contains three polar bonds.
B)  The molecule itself is not polar.
C)  The molecule has a trigonal pyramidal shape.
D)  The nitrogen atom has one nonbonding pair of electrons.
E)  The pull of the electrons in the N-H bonds is toward the nitrogen atom.F) A) and B)
G) A) and E)

Question 18

What is the Lewis symbol of the fluoride ion?

Accepted Answer

A)  
B)  
C)  
D)  
E)  F) C) and E)
G) A) and E)

Question 19

A covalent bond is formed when

Accepted Answer

A)  two metals share a pair of electrons.
B)  a metal and a nonmetal share a pair of electrons.
C)  a nonmetal donates an electron to a metal.
D)  cations and anions join as an ion pair.
E)  two nonmetals share a pair of electrons.F) B) and C)
G) A) and E)

Question 20

The polyatomic ion known as the diphosphate ion is an important intermediate formed in metabolic processes.If the ionic compound calcium diphosphate has the formula Ca2P2O7,which of the following correctly represents the symbol for the diphosphate ion?

Accepted Answer

A)  P2O74−
B)  P2O714-
C)  PO4+
D)  P2O72−
E)  PO2−F) B) and C)
G) B) and D)

Exam 3: Structure and Properties of Ionic and Covalent Compounds

Correct Answer
verified

How many nonbonding electrons are in CH₄?

Correct Answer
verified

Which element has the greatest electronegativity?

Correct Answer
verified

What is the name of the ion whose formula is NO₃-_?

Correct Answer
verified

The polyatomic ion known as the diphosphate ion is an important intermediate formed in metabolic processes.If the ionic compound calcium diphosphate has the formula Ca₂P₂O₇,which of the following correctly represents the symbol for the diphosphate ion?

Correct Answer
verified

A covalent bond involves which of the following?

Correct Answer
verified

What is the name of Fe²⁺ in the Stock system?

Correct Answer
verified

What term describes the temperature at which a solid is converted into a liquid?

Correct Answer
verified

The common name of iron(III)chloride is ferric chloride.

Correct Answer
verified

What is the Stock name of Cu⁺?

Correct Answer
verified

What statement about the ammonia molecule,NH₃,is FALSE?

Correct Answer
verified

Six electrons shared between two atoms corresponds to a triple bond.

Correct Answer
verified

Because the C-H bond in methane is polar,the CH₄ molecule will also be polar.

Correct Answer
verified

What is the Lewis symbol of the fluoride ion?

Correct Answer
verified

Which element has the greatest electronegativity?

Correct Answer
verified

Emergency treatment of cardiac arrest victims sometimes involves injection of a calcium chloride (CaCl₂) solution directly into the heart muscle.Which statement about the compound CaCl₂ is FALSE?

Correct Answer
verified

A covalent bond is formed when

Correct Answer
verified

Draw the Lewis structures of F₂,O₂ and N₂.Which statement is true?

Correct Answer
verified

A molecule of deoxyribose,an essential part of DNA,contains five carbon atoms,ten hydrogen atoms,and four oxygen atoms.How would the formula of deoxyribose be represented?

Correct Answer
verified

The name of SnO₂ is tin(II)oxide.

Correct Answer
verified

Exam 3: Structure and Properties of Ionic and Covalent Compounds

Correct AnswerverifiedShow Answer

How many nonbonding electrons are in CH4?

Correct AnswerverifiedShow Answer

Which element has the greatest electronegativity?

Correct AnswerverifiedShow Answer

What is the name of the ion whose formula is NO3-?

Correct AnswerverifiedShow Answer

The polyatomic ion known as the diphosphate ion is an important intermediate formed in metabolic processes.If the ionic compound calcium diphosphate has the formula Ca2P2O7,which of the following correctly represents the symbol for the diphosphate ion?

Correct AnswerverifiedShow Answer

A covalent bond involves which of the following?

Correct AnswerverifiedShow Answer

What is the name of Fe2+ in the Stock system?

Correct AnswerverifiedShow Answer

What term describes the temperature at which a solid is converted into a liquid?

Correct AnswerverifiedShow Answer

The common name of iron(III)chloride is ferric chloride.

Correct AnswerverifiedShow Answer

What is the Stock name of Cu+?

Correct AnswerverifiedShow Answer

What statement about the ammonia molecule,NH3,is FALSE?

Correct AnswerverifiedShow Answer

Six electrons shared between two atoms corresponds to a triple bond.

Correct AnswerverifiedShow Answer

Because the C-H bond in methane is polar,the CH4 molecule will also be polar.

Correct AnswerverifiedShow Answer

What is the Lewis symbol of the fluoride ion?

Correct AnswerverifiedShow Answer

Which element has the greatest electronegativity?

Correct AnswerverifiedShow Answer

Emergency treatment of cardiac arrest victims sometimes involves injection of a calcium chloride (CaCl2) solution directly into the heart muscle.Which statement about the compound CaCl2 is FALSE?

Correct AnswerverifiedShow Answer

A covalent bond is formed when

Correct AnswerverifiedShow Answer

Draw the Lewis structures of F2,O2 and N2.Which statement is true?

Correct AnswerverifiedShow Answer

A molecule of deoxyribose,an essential part of DNA,contains five carbon atoms,ten hydrogen atoms,and four oxygen atoms.How would the formula of deoxyribose be represented?

Correct AnswerverifiedShow Answer

The name of SnO2 is tin(II)oxide.

Correct AnswerverifiedShow Answer

Correct Answer
verified

How many nonbonding electrons are in CH₄?

Correct Answer
verified

Correct Answer
verified

What is the name of the ion whose formula is NO₃-_?

Correct Answer
verified

The polyatomic ion known as the diphosphate ion is an important intermediate formed in metabolic processes.If the ionic compound calcium diphosphate has the formula Ca₂P₂O₇,which of the following correctly represents the symbol for the diphosphate ion?

Correct Answer
verified

Correct Answer
verified

What is the name of Fe²⁺ in the Stock system?

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

What is the Stock name of Cu⁺?

Correct Answer
verified

What statement about the ammonia molecule,NH₃,is FALSE?

Correct Answer
verified

Correct Answer
verified

Because the C-H bond in methane is polar,the CH₄ molecule will also be polar.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Emergency treatment of cardiac arrest victims sometimes involves injection of a calcium chloride (CaCl₂) solution directly into the heart muscle.Which statement about the compound CaCl₂ is FALSE?

Correct Answer
verified

Correct Answer
verified

Draw the Lewis structures of F₂,O₂ and N₂.Which statement is true?

Correct Answer
verified

Correct Answer
verified

The name of SnO₂ is tin(II)oxide.

Correct Answer
verified