Question 1

Which of the following is a molecular compound?

Accepted Answer

A) CuCl2 
B) KCl 
C) NaNO3 
D) CH3Cl 
E) RbBr 
A) CuCl2 
B) KCl 
C) NaNO3 
D) CH3Cl 
E) RbBr

Question 2

How many moles of PCl3 contain 3.68 × 1025 chlorine atoms?

Accepted Answer

A) 61.1 moles PCl3 
B) 20.4 moles PCl3 
C) 16.4 moles PCl3 
D) 54.5 moles PCl3 
E) 49.1 moles PCl3 
A) 61.1 moles PCl3 
B) 20.4 moles PCl3 
C) 16.4 moles PCl3 
D) 54.5 moles PCl3 
E) 49.1 moles PCl3

Question 3

What is the mass of 9.44 × 1024 molecules of NO2? The molar mass of NO2 is 46.01 g mol-1.

Accepted Answer

A) 205 g 
B) 294 g 
C) 721 g 
D) 341 g 
E) 685 g 
A) 205 g 
B) 294 g 
C) 721 g 
D) 341 g 
E) 685 g

Question 4

What type of bonding is found in the compound OF2?

Accepted Answer

A) covalent bonding 
B) hydrogen bonding 
C) ionic bonding 
D) metallic bonding 
A) covalent bonding 
B) hydrogen bonding 
C) ionic bonding 
D) metallic bonding

Question 5

A covalent bond is best described as

Accepted Answer

A) the sharing of electrons between atoms. 
B) the transfer of electrons. 
C) a bond between a metal and a nonmetal. 
D) a bond between a metal and a polyatomic ion. 
E) a bond between two polyatomic ions. 
A) the sharing of electrons between atoms. 
B) the transfer of electrons. 
C) a bond between a metal and a nonmetal. 
D) a bond between a metal and a polyatomic ion. 
E) a bond between two polyatomic ions.

Question 6

What is the structure of the covalent compound formed by nitrogen and oxygen? Is this the only possibility? Explain.

Accepted Answer

Since nitrogen and oxygen are

Question 7

Which of the following is a molecular element?

Accepted Answer

A) Kr 
B) Ag 
C) S 
D) Mg 
E) Ti 
A) Kr 
B) Ag 
C) S 
D) Mg 
E) Ti

Question 8

Determine the name for aqueous HClO3.

Accepted Answer

A) hydrochloric acid 
B) hydrochlorous acid 
C) chlorate acid 
D) chloric acid 
E) perchloric acid 
A) hydrochloric acid 
B) hydrochlorous acid 
C) chlorate acid 
D) chloric acid 
E) perchloric acid

Question 9

How many moles of C3H8 contain 9.25 × 1024 molecules of C3H8?

Accepted Answer

A) 65.1 moles C3H8 
B) 28.6 moles C3H8 
C) 34.9 moles C3H8 
D) 46.2 moles C3H8 
E) 15.4 moles C3H8 
A) 65.1 moles C3H8 
B) 28.6 moles C3H8 
C) 34.9 moles C3H8 
D) 46.2 moles C3H8 
E) 15.4 moles C3H8

Question 10

In which set do all elements tend to form cations in binary ionic compounds?

Accepted Answer

A) K,Ga,O 
B) Sr,Ni,Hg 
C) N,P,Bi 
D) O,Br,I 
A) K,Ga,O 
B) Sr,Ni,Hg 
C) N,P,Bi 
D) O,Br,I

Question 11

Which of the following is one possible form of pentane?

Accepted Answer

A) CH3CH2CH2CH2CH3 
B) CH3CH=CHCH2CH3 
C) CH3CH2CH2CH2CH2CH3 
D) CH3CH2CH2CH2CH2NH2 
E) CH3CH2-O-CH2CH2CH3 
A) CH3CH2CH2CH2CH3 
B) CH3CH=CHCH2CH3 
C) CH3CH2CH2CH2CH2CH3 
D) CH3CH2CH2CH2CH2NH2 
E) CH3CH2-O-CH2CH2CH3

Question 12

Determine the name for Cl2O.

Accepted Answer

A) chlorine oxide 
B) dichlorine monoxide 
C) chlorine(I)oxide 
D) chlorine(II)oxide 
E) chlorate 
A) chlorine oxide 
B) dichlorine monoxide 
C) chlorine(I)oxide 
D) chlorine(II)oxide 
E) chlorate

Which of the following is a molecular compound?

How many moles of PCl₃ contain 3.68 × 10²⁵ chlorine atoms?

What is the mass of 9.44 × 10²⁴ molecules of NO₂? The molar mass of NO₂ is 46.01 g mol^-1.

What type of bonding is found in the compound OF₂?

A covalent bond is best described as

What is the structure of the covalent compound formed by nitrogen and oxygen? Is this the only possibility? Explain.

Which of the following is a molecular element?

Determine the name for aqueous HClO₃.

How many moles of C₃H₈ contain 9.25 × 10²⁴ molecules of C₃H₈?

In which set do all elements tend to form cations in binary ionic compounds?

Which of the following is one possible form of pentane?

Determine the name for Cl₂O.

Units of Measurement for Physical and Chemical Change

Atoms and Elements

Chemical Reactions and Stoichiometry

Gases

Thermochemistry

The Quantum-Mechanical Model of the Atom

Periodic Properties of the Elements

Chemical Bonding I: Lewis Theory

Chemical Bonding II: Molecular Shapes, valence Bond Theory, and Molecular Orbital Theory

Liquids, solids, and Intermolecular Forces

Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Aqueous Ionic Equilibrium

Gibbs Energy and Thermodynamics

Electrochemistry

Radioactivity and Nuclear Chemistry

Organic Chemistry I: Structures

Organic Chemistry II: Reactions

Biochemistry

Chemistry of the Nonmetals

Metals and Metallurgy

Transition Metals and Coordination Compounds

Filters

Exam 3: Molecules,compounds,and Nomenclature

Which of the following is a molecular compound?

How many moles of PCl3 contain 3.68 × 1025 chlorine atoms?

What is the mass of 9.44 × 1024 molecules of NO2? The molar mass of NO2 is 46.01 g mol-1.

What type of bonding is found in the compound OF2?

A covalent bond is best described as

What is the structure of the covalent compound formed by nitrogen and oxygen? Is this the only possibility? Explain.

Which of the following is a molecular element?

Determine the name for aqueous HClO3.

How many moles of C3H8 contain 9.25 × 1024 molecules of C3H8?

In which set do all elements tend to form cations in binary ionic compounds?

Which of the following is one possible form of pentane?

Determine the name for Cl2O.

Units of Measurement for Physical and Chemical Change

Atoms and Elements

Chemical Reactions and Stoichiometry

Gases

Thermochemistry

The Quantum-Mechanical Model of the Atom

Periodic Properties of the Elements

Chemical Bonding I: Lewis Theory

Chemical Bonding II: Molecular Shapes, valence Bond Theory, and Molecular Orbital Theory

Liquids, solids, and Intermolecular Forces

Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Aqueous Ionic Equilibrium

Gibbs Energy and Thermodynamics

Electrochemistry

Radioactivity and Nuclear Chemistry

Organic Chemistry I: Structures

Organic Chemistry II: Reactions

Biochemistry

Chemistry of the Nonmetals

Metals and Metallurgy

Transition Metals and Coordination Compounds

Filters

How many moles of PCl₃ contain 3.68 × 10²⁵ chlorine atoms?

What is the mass of 9.44 × 10²⁴ molecules of NO₂? The molar mass of NO₂ is 46.01 g mol^-1.

What type of bonding is found in the compound OF₂?

Determine the name for aqueous HClO₃.

How many moles of C₃H₈ contain 9.25 × 10²⁴ molecules of C₃H₈?

Determine the name for Cl₂O.