Question 1

When magnesium forms an ion,it would be represented as _____ .

Accepted Answer

A)  Mg- 
B)  Mg2- 
C)  Mg+ 
D)  Mg2+ 
A)  Mg- 
B)  Mg2- 
C)  Mg+ 
D)  Mg2+ D

Question 2

K+ and Cl- have the same electronic configuration as argon.

Accepted Answer

A) True 
 B)False  True

Question 3

Which of the following electronic changes will cause a Group VA (15)element to achieve a noble gas configuration?

Accepted Answer

A)  gain three electrons 
B)  gain two electrons 
C)  gain one electron 
D)  lose three electrons 
A)  gain three electrons 
B)  gain two electrons 
C)  gain one electron 
D)  lose three electrons A

Question 4

Hydrogen bonds form between the molecules of the hypothetical compound ABCH and do not form between DEFH molecules.

Accepted Answer

A)  ABCH has a higher molecular weight than DEFH. 
B)  ABCH represents a compound that contains O,N,or F directly bonded to H. 
C)  ABCH tends to be a compound with color,but DEFH does not have color. 
D)  There is no significant difference between ABCH and DEFH. 
A)  ABCH has a higher molecular weight than DEFH. 
B)  ABCH represents a compound that contains O,N,or F directly bonded to H. 
C)  ABCH tends to be a compound with color,but DEFH does not have color. 
D)  There is no significant difference between ABCH and DEFH.

Question 5

The outer shell of a noble gas always contains eight electrons.

Accepted Answer

A) True 
 B)False

Question 6

A polyatomic ion is a species that has both ionic and covalent bonding.

Accepted Answer

A) True 
 B)False

Question 7

Carbon dioxide is a linear molecule.

Accepted Answer

A) True 
 B)False

Question 8

During the formation of an ionic bond between Na and N,which of the following reactions occurs?

Accepted Answer

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

Question 9

Compounds containing covalent bonds are more soluble in water than those with ionic bonds.

Accepted Answer

A) True 
 B)False

Question 10

The molecular structure of water should be

Accepted Answer

A)  linear because of the electron configuration of the oxygen atom. 
B)  flat triangular because water contains 3 atoms. 
C)  bent because of the unshared electrons on the molecule. 
D)  undetermined as there is no way to predict the shape of the water molecule. 
A)  linear because of the electron configuration of the oxygen atom. 
B)  flat triangular because water contains 3 atoms. 
C)  bent because of the unshared electrons on the molecule. 
D)  undetermined as there is no way to predict the shape of the water molecule.

Question 11

Which of the following Lewis structures depicts provides a reasonable representation of SO2?

Accepted Answer

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

Question 12

Na+ and F-are isoelectronic.

Accepted Answer

A) True 
 B)False

Question 13

The water molecule has a bent structure.

Accepted Answer

A) True 
 B)False

Question 14

The correct name for CeS is _____ .

Accepted Answer

A)  cesium sulfate 
B)  cesium sulfide 
C)  cerium sulfate 
D)  cerium sulfide 
A)  cesium sulfate 
B)  cesium sulfide 
C)  cerium sulfate 
D)  cerium sulfide

Question 15

Which of the following has the highest electronegativity?

Accepted Answer

A)  O 
B)  N 
C)  Si 
D)  P 
A)  O 
B)  N 
C)  Si 
D)  P

Question 16

Both bonding and non-bonding electron pairs can influence molecular shape.

Accepted Answer

A) True 
 B)False

Question 17

H2O is a binary compound.

Accepted Answer

A) True 
 B)False

Question 18

The correct formula for the ionic compound containing Al3+ and PO  
Would be _____.

Accepted Answer

A)  Al3(PO4)3 
B)  AlPO4 
C)  Al3(PO4)2 
D)  Al2(PO4)3 
A)  Al3(PO4)3 
B)  AlPO4 
C)  Al3(PO4)2 
D)  Al2(PO4)3

Question 19

The shape of a BF3 molecule is _____ .

Accepted Answer

A)  angular 
B)  trigonal planar 
C)  trigonal pyramid 
D)  tetrahedral 
A)  angular 
B)  trigonal planar 
C)  trigonal pyramid 
D)  tetrahedral

Question 20

Which of the following is a correct Lewis structure for a group IIIA(13)element M?

Accepted Answer

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

Exam 4: Forces Between Particles

When magnesium forms an ion,it would be represented as _____ .

K+ and Cl- have the same electronic configuration as argon.

Which of the following electronic changes will cause a Group VA (15)element to achieve a noble gas configuration?

Hydrogen bonds form between the molecules of the hypothetical compound ABCH and do not form between DEFH molecules.

The outer shell of a noble gas always contains eight electrons.

A polyatomic ion is a species that has both ionic and covalent bonding.

Carbon dioxide is a linear molecule.

During the formation of an ionic bond between Na and N,which of the following reactions occurs?

Compounds containing covalent bonds are more soluble in water than those with ionic bonds.

The molecular structure of water should be

Which of the following Lewis structures depicts provides a reasonable representation of SO2?

Na+ and F-are isoelectronic.

The water molecule has a bent structure.

The correct name for CeS is _____ .

Which of the following has the highest electronegativity?

Both bonding and non-bonding electron pairs can influence molecular shape.

H2O is a binary compound.

The correct formula for the ionic compound containing Al3+ and PO Would be _____.

The shape of a BF3 molecule is _____ .

Which of the following is a correct Lewis structure for a group IIIA(13)element M?

Matter, measurements, and Calculations

Atoms and Molecules

Electronic Structure and the Periodic Law

Chemical Reactions

The States of Matter

Solutions and Colloids

Reaction Rates and Equilibrium

Acids,bases,and Salts

Radioactivity and Nuclear Processes

Organic Compounds: Alkanes

Unsaturated Hydrocarbons

Alcohols, phenols, and Ethers

Aldehydes and Ketones

Carboxylic Acids and Esters

Amines and Amides

Carbohydrates

Lipids

Proteins

Enzymes

Nucleic Acids and Protein Synthesis

Nutrition and Energy for Life

Carbohydrate Metabolism

Lipid and Amino Acid Metabolism

Body Fluids

Filters

K⁺ and Cl^- have the same electronic configuration as argon.

Which of the following Lewis structures depicts provides a reasonable representation of SO₂?

Na⁺ and F^-are isoelectronic.

H₂O is a binary compound.

The correct formula for the ionic compound containing Al³⁺ and PO Would be _____.

The shape of a BF₃ molecule is _____ .