Question 1

Interaction between molecules caused by the geometric orientations of their atoms is known as

Accepted Answer

A) medicinal chemistry. 
B) molecular recognition. 
C) polar recognition. 
D) the VESPR effect. 
A) medicinal chemistry. 
B) molecular recognition. 
C) polar recognition. 
D) the VESPR effect.

Question 2

Write the electron dot symbol for potassium.

Accepted Answer

The electron dot symbol for potassium (K

Question 3

Which substance has polar covalent bonds?

Accepted Answer

A) SO₂ 
B) N₂ 
C) F₂ 
D) BaO 
A) SO₂ 
B) N₂ 
C) F₂ 
D) BaO

Question 4

Covalent bonds generally form between

Accepted Answer

A) ions. 
B) metals. 
C) metals and nonmetals. 
D) nonmetals. 
A) ions. 
B) metals. 
C) metals and nonmetals. 
D) nonmetals.

Question 5

When a freshly cut piece of sodium metal,Na,is dropped into a flask with chlorine gas,a violent reaction takes place creating a new compound.This compound

Accepted Answer

A) has properties that are more like Na than Cl. 
B) has properties that are totally unlike either Na or Cl. 
C) has properties that more like Cl than Na. 
D) has properties that are like both Cl and Na. 
A) has properties that are more like Na than Cl. 
B) has properties that are totally unlike either Na or Cl. 
C) has properties that more like Cl than Na. 
D) has properties that are like both Cl and Na.

Question 6

The electron dot formula for carbon dioxide,CO₂,is

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 7

What is the name of the compound with the formula SO₃?

Accepted Answer

A) sulfur(VI)oxide 
B) sulfur oxide(III) 
C) sulfur trioxide 
D) sulfur(I)oxide(III) 
A) sulfur(VI)oxide 
B) sulfur oxide(III) 
C) sulfur trioxide 
D) sulfur(I)oxide(III)

Question 8

A trigonal pyramidal molecule that contains polar bonds will be polar.

Accepted Answer

A) True 
 B)False

Question 9

In the formula for copper(II)phosphate,the number of phosphorus atoms is

Accepted Answer

A) one. 
B) two. 
C) three. 
D) four. 
A) one. 
B) two. 
C) three. 
D) four.

Question 10

Acetylene is used in high temperature metal cutting torches.The formula of acetylene is C₂H₂.Draw the electron dot structure for acetylene.

Accepted Answer

To draw the electron dot structure for a

Question 11

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. 
A) linear. 
B) trigonal planar. 
C) tetrahedral. 
D) pyramidal.

Question 12

The valence shell electron pair repulsion theory (VSEPR)can be used to predict the arrangement of atoms around a central atom.

Accepted Answer

A) True 
 B)False

Question 13

All electrons around a central atom are in bonding pairs.

Accepted Answer

A) True 
 B)False

Question 14

A lone pair of electrons

Accepted Answer

A) occupies a smaller volume than a bonding pair. 
B) occupies a larger volume than a bonding pair. 
C) occupies the same volume as a bonding pair. 
D) will cause the bond angles to be larger. 
A) occupies a smaller volume than a bonding pair. 
B) occupies a larger volume than a bonding pair. 
C) occupies the same volume as a bonding pair. 
D) will cause the bond angles to be larger.

Question 15

The correct formula for lithium acetate is

Accepted Answer

A) LiC₂H₃O₂. 
B) Li₃C₂H₃O₂. 
C) Li₂C₂O₃H₂. 
D) Li(C₂H₃O₂)₂. 
A) LiC₂H₃O₂. 
B) Li₃C₂H₃O₂. 
C) Li₂C₂O₃H₂. 
D) Li(C₂H₃O₂)₂.

Question 16

An electron-dot structure is a convenient method of representing

Accepted Answer

A) valence electrons of an atom. 
B) core electrons of an atom. 
C) all electrons of the atom. 
D) the complete electron configuration of the atom. 
A) valence electrons of an atom. 
B) core electrons of an atom. 
C) all electrons of the atom. 
D) the complete electron configuration of the atom.

Question 17

Octet means

Accepted Answer

A) stable electrons. 
B) valence electrons. 
C) eight. 
D) filled shell. 
A) stable electrons. 
B) valence electrons. 
C) eight. 
D) filled shell.

Question 18

When a phosphorus atom combines with hydrogen to form a molecule,how many bonds are formed?

Accepted Answer

A) 1 
B) 2 
C) 4 
D) 3 
A) 1 
B) 2 
C) 4 
D) 3

Question 19

Which substance has ionic bonds?

Accepted Answer

A) Br₂ 
B) NH₃ 
C) H₂O 
D) LiI 
A) Br₂ 
B) NH₃ 
C) H₂O 
D) LiI

Question 20

When a fluorine atom reacts with a chlorine atom,the bond that forms between them should be

Accepted Answer

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

Exam 4: Chemical Bonds

Interaction between molecules caused by the geometric orientations of their atoms is known as

Write the electron dot symbol for potassium.

Which substance has polar covalent bonds?

Covalent bonds generally form between

When a freshly cut piece of sodium metal,Na,is dropped into a flask with chlorine gas,a violent reaction takes place creating a new compound.This compound

The electron dot formula for carbon dioxide,CO₂,is

What is the name of the compound with the formula SO₃?

A trigonal pyramidal molecule that contains polar bonds will be polar.

In the formula for copper(II)phosphate,the number of phosphorus atoms is

Acetylene is used in high temperature metal cutting torches.The formula of acetylene is C₂H₂.Draw the electron dot structure for acetylene.

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

The valence shell electron pair repulsion theory (VSEPR)can be used to predict the arrangement of atoms around a central atom.

All electrons around a central atom are in bonding pairs.

A lone pair of electrons

The correct formula for lithium acetate is

An electron-dot structure is a convenient method of representing

Octet means

When a phosphorus atom combines with hydrogen to form a molecule,how many bonds are formed?

Which substance has ionic bonds?

When a fluorine atom reacts with a chlorine atom,the bond that forms between them should be

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