Question 1

Which species has 54 electrons?

Accepted Answer

A)    Xe+ 
B)    Te2- 
C)    Sn2+ 
D)    Cd 
E)    Xe2+ 
A)    Xe+ 
B)    Te2- 
C)    Sn2+ 
D)    Cd 
E)    Xe2+

Question 2

Predict the empirical formula of the ionic compound that forms from sodium and fluorine.

Accepted Answer

A) NaF 
B) Na2F 
C) Na F2 
D) Na2F3 
E) Na3F2 
A) NaF 
B) Na2F 
C) Na F2 
D) Na2F3 
E) Na3F2

Question 3

The correct name for HNO2 is __________.

Accepted Answer

A) nitrous acid 
B) nitric acid 
C) hydrogen nitrate 
D) hyponitrous acid 
E) pernitric acid 
A) nitrous acid 
B) nitric acid 
C) hydrogen nitrate 
D) hyponitrous acid 
E) pernitric acid

Question 4

What is the molecular formula for heptane?

Accepted Answer

A) C6H12 
B) C6H14 
C) C7H14 
D) C7H16 
E) C7H18 
A) C6H12 
B) C6H14 
C) C7H14 
D) C7H16 
E) C7H18

Question 5

Which statement below correctly describes the responses of alpha, beta, and gamma radiation to an electric field?

Accepted Answer

A) Both beta and gamma are deflected in the same direction, while alpha shows no response. 
B) Both alpha and gamma are deflected in the same direction, while beta shows no response. 
C) Both alpha and beta are deflected in the same direction, while gamma shows no response. 
D) Alpha and beta are deflected in opposite directions, while gamma shows no response. 
E) Only alpha is deflected, while beta and gamma show no response. 
A) Both beta and gamma are deflected in the same direction, while alpha shows no response. 
B) Both alpha and gamma are deflected in the same direction, while beta shows no response. 
C) Both alpha and beta are deflected in the same direction, while gamma shows no response. 
D) Alpha and beta are deflected in opposite directions, while gamma shows no response. 
E) Only alpha is deflected, while beta and gamma show no response.

Question 6

The element X has two naturally occurring isotopes. The masses (amu)and % abundances of the isotopes are given in the table below. The average atomic mass of the element is __________ amu.

Accepted Answer

A) 30.20 
B) 33.20 
C) 34.02 
D) 35.22 
E) 32.73 
A) 30.20 
B) 33.20 
C) 34.02 
D) 35.22 
E) 32.73

Question 7

What is the molecular formula for propane?

Accepted Answer

A) C2H8 
B) C3H6 
C) C3H8 
D) C4H8 
E) C4H10 
A) C2H8 
B) C3H6 
C) C3H8 
D) C4H8 
E) C4H10

Question 8

The element X has three naturally occurring isotopes. The masses (amu)and % abundances of the isotopes are given in the table below. The average atomic mass of the element is __________ amu.

Accepted Answer

A) 17.20 
B) 16.90 
C) 17.65 
D) 17.11 
A) 17.20 
B) 16.90 
C) 17.65 
D) 17.11

Question 9

Methane and ethane are both made up of carbon and hydrogen. In methane, there are 12.0 g of carbon for every 4.00 g of hydrogen, a ratio of 3:1 by mass. In ethane, there are 24.0 g of carbon for every 6.00 g of hydrogen, a ratio of 4:1 by mass. This is an illustration of the law of __________.

Accepted Answer

A) constant composition 
B) multiple proportions 
C) conservation of matter 
D) conservation of mass 
E) octaves 
A) constant composition 
B) multiple proportions 
C) conservation of matter 
D) conservation of mass 
E) octaves

Question 10

What is the molecular formula for pentane?

Accepted Answer

A) C2H8 
B) C3H6 
C) C4H8 
D) C5H12 
E) C5H10 
A) C2H8 
B) C3H6 
C) C4H8 
D) C5H12 
E) C5H10

Question 11

In the absence of magnetic or electric fields, cathode rays __________.

Accepted Answer

A) do not exist 
B) travel in straight lines 
C) cannot be detected 
D) become positively charged 
E) bend toward a light source 
A) do not exist 
B) travel in straight lines 
C) cannot be detected 
D) become positively charged 
E) bend toward a light source

Question 12

The correct name for K2S is __________.

Accepted Answer

A) potassium sulfate 
B) potassium disulfide 
C) potassium bisulfide 
D) potassium sulfide 
E) dipotassium sulfate 
A) potassium sulfate 
B) potassium disulfide 
C) potassium bisulfide 
D) potassium sulfide 
E) dipotassium sulfate

Question 13

Of the three types of radioactivity characterized by Rutherford, which are particles?

Accepted Answer

A) β-rays 
B) α-rays, β-rays, and γ-rays 
C) γ-rays 
D) α-rays and γ-rays 
E) α-rays and β-rays 
A) β-rays 
B) α-rays, β-rays, and γ-rays 
C) γ-rays 
D) α-rays and γ-rays 
E) α-rays and β-rays

Question 14

The charge on the __________ ion is -3.

Accepted Answer

A) sulfate 
B) acetate 
C) permanganate 
D) oxide 
E) nitride 
A) sulfate 
B) acetate 
C) permanganate 
D) oxide 
E) nitride

Question 15

Which pair of elements is most apt to form an ionic compound with each other?

Accepted Answer

A) barium, bromine 
B) calcium, sodium 
C) oxygen, fluorine 
D) sulfur, fluorine 
E) nitrogen, hydrogen 
A) barium, bromine 
B) calcium, sodium 
C) oxygen, fluorine 
D) sulfur, fluorine 
E) nitrogen, hydrogen

Question 16

An element that appears in the lower left corner of the periodic table is __________.

Accepted Answer

A) either a metal or metalloid 
B) definitely a metal 
C) either a metalloid or a non-metal 
D) definitely a non-metal 
E) definitely a metalloid 
A) either a metal or metalloid 
B) definitely a metal 
C) either a metalloid or a non-metal 
D) definitely a non-metal 
E) definitely a metalloid

Question 17

The element X has three naturally occurring isotopes. The isotopic masses (amu)and % abundances of the isotopes are given in the table below. The average atomic mass of the element is __________ amu.

Accepted Answer

A) 33.33 
B) 55.74 
C) 56.11 
D) 57.23 
E) 56.29 
A) 33.33 
B) 55.74 
C) 56.11 
D) 57.23 
E) 56.29

Question 18

In the symbol shown below, x = __________.   C

Accepted Answer

A) 7 
B) 13 
C) 12 
D) 6 
E) not enough information to determine 
A) 7 
B) 13 
C) 12 
D) 6 
E) not enough information to determine

Question 19

The formula of the carbonate ion is __________.

Accepted Answer

A) CO22- 
B) CO32- 
C) CO23- 
D) CO2- 
E) CO- 
A) CO22- 
B) CO32- 
C) CO23- 
D) CO2- 
E) CO-

Question 20

The correct name for SrO is __________.

Accepted Answer

A) strontium oxide 
B) strontium hydroxide 
C) strontium peroxide 
D) strontium monoxide 
E) strontium dioxide 
A) strontium oxide 
B) strontium hydroxide 
C) strontium peroxide 
D) strontium monoxide 
E) strontium dioxide

Exam 2: Atoms, Molecules, and Ions

Which species has 54 electrons?

Predict the empirical formula of the ionic compound that forms from sodium and fluorine.

The correct name for HNO2 is __________.

What is the molecular formula for heptane?

Which statement below correctly describes the responses of alpha, beta, and gamma radiation to an electric field?

The element X has two naturally occurring isotopes. The masses (amu)and % abundances of the isotopes are given in the table below. The average atomic mass of the element is __________ amu.

What is the molecular formula for propane?

The element X has three naturally occurring isotopes. The masses (amu)and % abundances of the isotopes are given in the table below. The average atomic mass of the element is __________ amu.

Methane and ethane are both made up of carbon and hydrogen. In methane, there are 12.0 g of carbon for every 4.00 g of hydrogen, a ratio of 3:1 by mass. In ethane, there are 24.0 g of carbon for every 6.00 g of hydrogen, a ratio of 4:1 by mass. This is an illustration of the law of __________.

What is the molecular formula for pentane?

In the absence of magnetic or electric fields, cathode rays __________.

The correct name for K2S is __________.

Of the three types of radioactivity characterized by Rutherford, which are particles?

The charge on the __________ ion is -3.

Which pair of elements is most apt to form an ionic compound with each other?

An element that appears in the lower left corner of the periodic table is __________.

The element X has three naturally occurring isotopes. The isotopic masses (amu)and % abundances of the isotopes are given in the table below. The average atomic mass of the element is __________ amu.

In the symbol shown below, x = __________. C

The formula of the carbonate ion is __________.

The correct name for SrO is __________.

Introduction: Matter and Measurement

Stoichiometry: Calculations With Chemical Formulas and Equations

Aqueous Reactions and Solution Stoichiometry

Thermochemistry

Electronic Structure of Atoms

Periodic Properties of the Elements

Basic Concepts of Chemical Bonding

Molecular Geometry and Bonding Theories

Gases

Liquids and Intermolecular Forces

Solids and Modern Materials

Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acid-Base Equilibria

Additional Aspects of Aqueous Equilibria

Chemistry of the Environment

Chemical Thermodynamics

Electrochemistry

Nuclear Chemistry

Chemistry of the Nonmetals

Transition Metals and Coordination Chemistry

The Chemistry of Life: Organic and Biological Chemistry

Filters

The correct name for HNO₂ is __________.

The correct name for K₂S is __________.