Question 1

Which of the following formulas in incorrect for a cobalt(III)compound?

Accepted Answer

A) CoCO3 
B) CoCl3 
C) Co2O3 
D) CoPO4 
A) CoCO3 
B) CoCl3 
C) Co2O3 
D) CoPO4

Question 2

Which is the correct formula for the ionic compound containing iron(III)ions and oxide ions?

Accepted Answer

A) FeO 
B) FeO2 
C) Fe2O2 
D) Fe2O3 
E) Fe3O2 
A) FeO 
B) FeO2 
C) Fe2O2 
D) Fe2O3 
E) Fe3O2

Question 3

The formula for ammonium hydroxide is ________.

Accepted Answer

A) OHNH4 
B) NH4NO3 
C) NH4O 
D) NH4OH 
E) Al(OH)3 
A) OHNH4 
B) NH4NO3 
C) NH4O 
D) NH4OH 
E) Al(OH)3

Question 4

What is the most likely charge on an ion formed by an element with a valence electron configuration of ns2np5?

Accepted Answer

A) 5- 
B) 1- 
C) 1+ 
D) 2+ 
E) 5+ 
A) 5- 
B) 1- 
C) 1+ 
D) 2+ 
E) 5+

Question 5

The formula (NH4)3PO4 indicates that one formula unit of this compound is composed of

Accepted Answer

A) three atoms of nitrogen,twelve atoms of hydrogen,one atom of phosphorus,four atoms of oxygen,and six extra electrons. 
B) three atoms of nitrogen,twelve atoms of hydrogen,four atoms of phosphorus,and four atoms of oxygen. 
C) one atom of nitrogen,twelve atoms of hydrogen,one atom of phosphorus,and four atoms of oxygen. 
D) three atoms of nitrogen,seven atoms of hydrogen,one atom of phosphorus,and four atoms of oxygen. 
E) three atoms of nitrogen,twelve atoms of hydrogen,one atom of phosphorus,and four atoms of oxygen. 
A) three atoms of nitrogen,twelve atoms of hydrogen,one atom of phosphorus,four atoms of oxygen,and six extra electrons. 
B) three atoms of nitrogen,twelve atoms of hydrogen,four atoms of phosphorus,and four atoms of oxygen. 
C) one atom of nitrogen,twelve atoms of hydrogen,one atom of phosphorus,and four atoms of oxygen. 
D) three atoms of nitrogen,seven atoms of hydrogen,one atom of phosphorus,and four atoms of oxygen. 
E) three atoms of nitrogen,twelve atoms of hydrogen,one atom of phosphorus,and four atoms of oxygen.

Question 6

What is the formula of the sulfite ion?

Accepted Answer

A) SO3 2- 
B) SO4 2- 
C) HSO4 2- 
D) S 2- 
E) none of the above 
A) SO3 2- 
B) SO4 2- 
C) HSO4 2- 
D) S 2- 
E) none of the above

Question 7

The formula PO4 3- means that this ion is composed of

Accepted Answer

A) one atom of phosphorus,one atom of oxygen,and three extra electrons. 
B) four atoms of phosphorus,four atoms or oxygen,and three extra electrons. 
C) one atom of phosphorus,four atoms of oxygen,and three electrons have been lost. 
D) one atom of phosphorus,four atoms of oxygen,and three extra electrons. 
E) four atoms of phosphorus,four atoms of oxygen,and three electrons have been lost. 
A) one atom of phosphorus,one atom of oxygen,and three extra electrons. 
B) four atoms of phosphorus,four atoms or oxygen,and three extra electrons. 
C) one atom of phosphorus,four atoms of oxygen,and three electrons have been lost. 
D) one atom of phosphorus,four atoms of oxygen,and three extra electrons. 
E) four atoms of phosphorus,four atoms of oxygen,and three electrons have been lost.

Question 8

If an element G could react with sulfur to form an ionic compound with formula GS2,the charge on the ion formed by G would be ________.

Accepted Answer

A) 4- 
B) 2- 
C) 1+ 
D) 2+ 
E) 4+ 
A) 4- 
B) 2- 
C) 1+ 
D) 2+ 
E) 4+

Question 9

What is the most likely charge on an ion formed by an element with a valence electron configuration of ns2np4?

Accepted Answer

A) 2- 
B) 1- 
C) 2+ 
D) 4+ 
E) 6+ 
A) 2- 
B) 1- 
C) 2+ 
D) 4+ 
E) 6+

Question 10

What fourth period element is represented by the dot structure shown?

Accepted Answer

A) K 
B) Ca 
C) Mn 
D) Br 
E) Co 
A) K 
B) Ca 
C) Mn 
D) Br 
E) Co

Question 11

Which of the following formulas represents a compound that is a base?

Accepted Answer

A) CaSO4 
B) NH4Cl 
C) Mg(OH)2 
D) H2 
E) none of the above 
A) CaSO4 
B) NH4Cl 
C) Mg(OH)2 
D) H2 
E) none of the above

Question 12

What is the name of AlCl3?

Accepted Answer

A) aluminum chloride 
B) aluminum(III)chloride 
C) aluminum carbide 
D) aluminum trichloride 
E) aluminum tricarbide 
A) aluminum chloride 
B) aluminum(III)chloride 
C) aluminum carbide 
D) aluminum trichloride 
E) aluminum tricarbide

Question 13

The name of Cl- is

Accepted Answer

A) chlorine ion. 
B) chloride ion. 
C) chlorate ion. 
D) chlorite ion. 
E) diatomic chlorine. 
A) chlorine ion. 
B) chloride ion. 
C) chlorate ion. 
D) chlorite ion. 
E) diatomic chlorine.

Question 14

A formula unit of the ionic compound copper(II)carbonate consists of ________ copper(II)ions and ________ carbonate ions.

Accepted Answer

A) one; one 
B) one; two 
C) two; one 
D) two; two 
E) some other combination of ions 
A) one; one 
B) one; two 
C) two; one 
D) two; two 
E) some other combination of ions

Question 15

The main group element E reacts with chlorine to form an ionic compound with the formula ECl2.The element E is a member of what group in the Periodic Table?

Accepted Answer

A) 1A 
B) 2A 
C) 6A 
D) 7A 
E) none of the above 
A) 1A 
B) 2A 
C) 6A 
D) 7A 
E) none of the above

Exam 3: Ionic Compounds

Which of the following formulas in incorrect for a cobalt(III)compound?

Which is the correct formula for the ionic compound containing iron(III)ions and oxide ions?

The formula for ammonium hydroxide is ________.

What is the most likely charge on an ion formed by an element with a valence electron configuration of ns2np5?

The formula (NH4)3PO4 indicates that one formula unit of this compound is composed of

What is the formula of the sulfite ion?

The formula PO4 3- means that this ion is composed of

If an element G could react with sulfur to form an ionic compound with formula GS2,the charge on the ion formed by G would be ________.

What is the most likely charge on an ion formed by an element with a valence electron configuration of ns2np4?

What fourth period element is represented by the dot structure shown?

Which of the following formulas represents a compound that is a base?

What is the name of AlCl3?

The name of Cl- is

A formula unit of the ionic compound copper(II)carbonate consists of ________ copper(II)ions and ________ carbonate ions.

The main group element E reacts with chlorine to form an ionic compound with the formula ECl2.The element E is a member of what group in the Periodic Table?

Matter and Measurements

Atoms and the Periodic Table

Molecular Compounds

Classification and Balancing of Chemical Reactions

Chemical Reactions: Mole and Mass Relationships

Chemical Reactions: Energy, rates, and Equilibrium

Gases, liquids, and Solids

Solutions

Acids and Bases

Nuclear Chemistry

Introduction to Organic Chemistry: Alkanes

Alkenes, alkynes, and Aromatic Compounds

Some Compounds With Oxygen, sulfur, or a Halogen

Amines

Aldehydes and Ketones

Carboxylic Acids and Their Derivatives

Amino Acids and Proteins

Enzymes and Vitamins

The Generation of Biochemical Energy

Carbohydrates

Carbohydrate Metabolism

Lipids

Lipid Metabolism

Nucleic Acids and Protein Synthesis

Genomics

Protein and Amino Acid Metabolism

Chemical Messengers: Hormones, neurotransmitters, and Drugs

Body Fluids

Filters

What is the most likely charge on an ion formed by an element with a valence electron configuration of ns²np⁵?

The formula (NH₄)₃PO₄ indicates that one formula unit of this compound is composed of

The formula PO₄^3- means that this ion is composed of

If an element G could react with sulfur to form an ionic compound with formula GS₂,the charge on the ion formed by G would be ________.

What is the most likely charge on an ion formed by an element with a valence electron configuration of ns²np⁴?

What is the name of AlCl₃?

The name of Cl^- is

A formula unit of the ionic compound copper(II)carbonate consists of copper(II)ions and carbonate ions.

The main group element E reacts with chlorine to form an ionic compound with the formula ECl₂.The element E is a member of what group in the Periodic Table?