Question 1

Bulimia is characterized as the failure to maintain a body mass that is at least 85% of normal.

Accepted Answer

A) True 
 B)False

Question 2

What would be the proper name for the following binary ionic compound CaBr2?

Accepted Answer

A)  calcium dibromine 
B)  monocalcium bromine 
C)  monocalcium dibromide 
D)  calcium bromide 
A)  calcium dibromine 
B)  monocalcium bromine 
C)  monocalcium dibromide 
D)  calcium bromide

Question 3

The correct name for the covalent compound N2O4 is _____ .

Accepted Answer

A)  dinitrogen tetroxide 
B)  nitrogen oxide 
C)  nitrogen quartoxide 
D)  dinitrogen quartoxide 
A)  dinitrogen tetroxide 
B)  nitrogen oxide 
C)  nitrogen quartoxide 
D)  dinitrogen quartoxide

Question 4

Which of the following molecular geometries would most likely give rise to a nonpolar compound?

Accepted Answer

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

Question 5

The most common positive ion in human fluids is _____ .

Accepted Answer

A)  Cl- 
B)  PO
  
C)  Na+ 
D)  Fe2+ 
A)  Cl- 
B)  PO
  
C)  Na+ 
D)  Fe2+

Question 6

Oxygen must gain two electrons to achieve a noble gas configuration.

Accepted Answer

A) True 
 B)False

Question 7

Ammonia is a planar trigonal molecule.

Accepted Answer

A) True 
 B)False

Question 8

The formula weight of an ionic compound is analogous to a molecular weight of a covalent compound.

Accepted Answer

A) True 
 B)False

Question 9

For some representative metals,two possible ions can be formed.Why?

Accepted Answer

A)  s electrons can fill the next lower d orbital. 
B)  They can lose electrons to form a cation and gain electrons to form an anion. 
C)  They can lose the s electrons or all electrons in their outer shell. 
D)  They can lose just the p electrons or all electrons in their outer shell. 
A)  s electrons can fill the next lower d orbital. 
B)  They can lose electrons to form a cation and gain electrons to form an anion. 
C)  They can lose the s electrons or all electrons in their outer shell. 
D)  They can lose just the p electrons or all electrons in their outer shell.

Question 10

Which of the following correctly represents the polarity of the bond?

Accepted Answer

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

Question 11

Some elements can display more than one charge.The most stable charge is

Accepted Answer

A)  due to having 6 electrons in the outside orbit. 
B)  that charge produced by a loss of electrons,not a gain of electrons. 
C)  the charge produced by the noble gas configuration. 
D)  All are correct. 
A)  due to having 6 electrons in the outside orbit. 
B)  that charge produced by a loss of electrons,not a gain of electrons. 
C)  the charge produced by the noble gas configuration. 
D)  All are correct.

Question 12

The name for the compound formed between Co3+ and O2- is cobalt(II)oxide.

Accepted Answer

A) True 
 B)False

Question 13

What medicinal value does ZnO have?

Accepted Answer

A)  sun screen 
B)  relieves diaper rash 
C)  relieves poison ivy 
D)  all of these 
A)  sun screen 
B)  relieves diaper rash 
C)  relieves poison ivy 
D)  all of these

Question 14

Which of the following would you expect to be the most polar molecule?

Accepted Answer

A)  CO2 
B)  H2S 
C)  KCl 
D)  SiH4 
A)  CO2 
B)  H2S 
C)  KCl 
D)  SiH4

Question 15

Fe2+ and Fe3+ are isoelectronic.

Accepted Answer

A) True 
 B)False

Question 16

When an ionic compound forms between sodium (Na)and bromine (Br)atoms,it is true that

Accepted Answer

A)  a bromine atom donates an electron to a sodium atom. 
B)  both the bromine atoms and sodium atoms donate electrons to each other. 
C)  a sodium atom donates an electron to a bromine atom. 
D)  neither bromine nor sodium atoms donate electrons to each other. 
A)  a bromine atom donates an electron to a sodium atom. 
B)  both the bromine atoms and sodium atoms donate electrons to each other. 
C)  a sodium atom donates an electron to a bromine atom. 
D)  neither bromine nor sodium atoms donate electrons to each other.

Question 17

If the electronegativity difference between A and B is 0.8,what type of bond is formed between the two elements?

Accepted Answer

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

Question 18

A covalent bond is a common type of interparticler force.

Accepted Answer

A) True 
 B)False

Question 19

Which type of interparticle forces leads to compounds with the lowest melting points?

Accepted Answer

A)  covalent 
B)  dispersion 
C)  ionic 
D)  dipole-dipole 
A)  covalent 
B)  dispersion 
C)  ionic 
D)  dipole-dipole

Question 20

Which of the following is the correct Lewis structure for C2H4?

Accepted Answer

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

Exam 4: Forces Between Particles

Bulimia is characterized as the failure to maintain a body mass that is at least 85% of normal.

What would be the proper name for the following binary ionic compound CaBr2?

The correct name for the covalent compound N2O4 is _____ .

Which of the following molecular geometries would most likely give rise to a nonpolar compound?

The most common positive ion in human fluids is _____ .

Oxygen must gain two electrons to achieve a noble gas configuration.

Ammonia is a planar trigonal molecule.

The formula weight of an ionic compound is analogous to a molecular weight of a covalent compound.

For some representative metals,two possible ions can be formed.Why?

Which of the following correctly represents the polarity of the bond?

Some elements can display more than one charge.The most stable charge is

The name for the compound formed between Co3+ and O2- is cobalt(II)oxide.

What medicinal value does ZnO have?

Which of the following would you expect to be the most polar molecule?

Fe2+ and Fe3+ are isoelectronic.

When an ionic compound forms between sodium (Na)and bromine (Br)atoms,it is true that

If the electronegativity difference between A and B is 0.8,what type of bond is formed between the two elements?

A covalent bond is a common type of interparticler force.

Which type of interparticle forces leads to compounds with the lowest melting points?

Which of the following is the correct Lewis structure for C2H4?

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

What would be the proper name for the following binary ionic compound CaBr₂?

The correct name for the covalent compound N₂O₄ is _____ .

The name for the compound formed between Co³⁺ and O^2- is cobalt(II)oxide.

Fe²⁺ and Fe³⁺ are isoelectronic.

Which of the following is the correct Lewis structure for C₂H₄?