Question 1

The lattice site in a crystal is

Accepted Answer

A) the general location of all particles in a crystal. 
B) the individual location occupied by a particle. 
C) the rigid three-dimensional arrangement of particles. 
D) None of the choices. 
A) the general location of all particles in a crystal. 
B) the individual location occupied by a particle. 
C) the rigid three-dimensional arrangement of particles. 
D) None of the choices. B

Question 2

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 A

Question 3

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 B

Question 4

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

Accepted Answer

A) True 
 B)False

Question 5

Which of the following distinguishing electron configurations is characteristic of noble gases?

Accepted Answer

A) n f 14 
B) n d 10 
C) n p 6 
D) n s 2 
A) n f 14 
B) n d 10 
C) n p 6 
D) n s 2

Question 6

The reason that an overabundance of iron in the human body, hemochromatosis, is dangerous because iron is magnetic and the increase in magnetism in the body cause organ damage.

Accepted Answer

A) True 
 B)False

Question 7

How many moles of K+ and P3- ions are present in 2.00 moles of K3P?

Accepted Answer

A) 6.00 mol K+ and  2.00 mol P3- 
B) 3.00 mol K+ and  1.00 mol P3- 
C) 1.00 mol K+ and  3.00 mol P3- 
D) 2.00 mol K+ and  6.00 mol P3- 
A) 6.00 mol K+ and  2.00 mol P3- 
B) 3.00 mol K+ and  1.00 mol P3- 
C) 1.00 mol K+ and  3.00 mol P3- 
D) 2.00 mol K+ and  6.00 mol P3-

Question 8

Na+ and F −  are isoelectronic.

Accepted Answer

A) True 
 B)False

Question 9

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 10

Which of the following statements is correct with reference to covalent bonding?

Accepted Answer

A) Covalent bonds only form between like atoms. 
B) The nonpolar covalent bond is the reason for hydrogen bonding. 
C) Polyatomic compounds contain only covalent bonds. 
D) None of these is a correct statement. 
A) Covalent bonds only form between like atoms. 
B) The nonpolar covalent bond is the reason for hydrogen bonding. 
C) Polyatomic compounds contain only covalent bonds. 
D) None of these is a correct statement.

Question 11

The correct formula of an ionic compound containing Fe2+ and ClO   is _____ .

Accepted Answer

A) FeClO4 
B) Fe2(ClO4)3 
C) Fe(ClO4)2 
D) Fe3(ClO4)2 
A) FeClO4 
B) Fe2(ClO4)3 
C) Fe(ClO4)2 
D) Fe3(ClO4)2

Question 12

Which of the following would be considered as a rare earth?

Accepted Answer

A) cerium 
B) cesium 
C) curium 
D) cadmium 
A) cerium 
B) cesium 
C) curium 
D) cadmium

Question 13

In what part of the human body is nitric oxide, NO, produced?

Accepted Answer

A) the brain 
B) the heart 
C) blood vessels 
D) the skin 
A) the brain 
B) the heart 
C) blood vessels 
D) the skin

Question 14

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 15

What single condition is required to insure that a molecule will be polar covalent?

Accepted Answer

A) a bond between like atoms 
B) a bond between atoms that are different in electronegativity 
C) a bond between atoms that are of widely different atomic weights 
D) none of the choices 
A) a bond between like atoms 
B) a bond between atoms that are different in electronegativity 
C) a bond between atoms that are of widely different atomic weights 
D) none of the choices

Question 16

NH3 (ammonia)exhibits what type of structure?

Accepted Answer

A) triangle 
B) pyramid with square base 
C) pyramid with triangular base 
D) none of these 
A) triangle 
B) pyramid with square base 
C) pyramid with triangular base 
D) none of these

Question 17

In describing the strength of interparticle forces, we discover that the weakest forces of bonds are _____ .

Accepted Answer

A) covalent 
B) metallic 
C) dipolar 
D) dispersion 
A) covalent 
B) metallic 
C) dipolar 
D) dispersion

Question 18

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 19

What is the formula mass of the compound formed between Al3+ and Cl-?

Accepted Answer

A) 187.5 u 
B) 62.5 u 
C) 116.5 u 
D) 133.5 u 
A) 187.5 u 
B) 62.5 u 
C) 116.5 u 
D) 133.5 u

Question 20

Metals gain electrons to become ions in ionic compounds.

Accepted Answer

A) True 
 B)False

Exam 4: Forces Between Particles

The lattice site in a crystal is

Which of the following has the highest electronegativity?

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

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

Which of the following distinguishing electron configurations is characteristic of noble gases?

The reason that an overabundance of iron in the human body, hemochromatosis, is dangerous because iron is magnetic and the increase in magnetism in the body cause organ damage.

How many moles of K+ and P3- ions are present in 2.00 moles of K3P?

Na+ and F − are isoelectronic.

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

Which of the following statements is correct with reference to covalent bonding?

The correct formula of an ionic compound containing Fe2+ and ClO is _____ .

Which of the following would be considered as a rare earth?

In what part of the human body is nitric oxide, NO, produced?

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

What single condition is required to insure that a molecule will be polar covalent?

NH3 (ammonia)exhibits what type of structure?

In describing the strength of interparticle forces, we discover that the weakest forces of bonds are _____ .

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

What is the formula mass of the compound formed between Al3+ and Cl-?

Metals gain electrons to become ions in ionic compounds.

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

How many moles of K⁺ and P^3- ions are present in 2.00 moles of K₃P?

Na⁺ and F⁻ are isoelectronic.

The correct formula of an ionic compound containing Fe²⁺ and ClO is _____ .

NH₃ (ammonia)exhibits what type of structure?

What is the formula mass of the compound formed between Al³⁺ and Cl^-?