Question 1

Which one of the following is not true concerning cathode rays?

Accepted Answer

A) They originate from the negative electrode. 
B) They travel in straight lines in the absence of electric or magnetic fields. 
C) They impart a negative charge to metals exposed to them. 
D) They are made up of electrons. 
E) The characteristics of cathode rays depend on the material from which they are emitted. 
A) They originate from the negative electrode. 
B) They travel in straight lines in the absence of electric or magnetic fields. 
C) They impart a negative charge to metals exposed to them. 
D) They are made up of electrons. 
E) The characteristics of cathode rays depend on the material from which they are emitted.

Question 2

The correct name for CaH2 is ________.

Accepted Answer

A) hydrocalcium 
B) calcium dihydride 
C) calcium hydroxide 
D) calcium dihydroxide 
E) calcium hydride 
A) hydrocalcium 
B) calcium dihydride 
C) calcium hydroxide 
D) calcium dihydroxide 
E) calcium hydride

Question 3

Which formula/name pair is incorrect?

Accepted Answer

A) Mn(NO2)2 manganese(II)nitrite 
B) Mg(NO3)2 magnesium nitrate 
C) Mn(NO3)2 manganese(II)nitrate 
D) Mg3N2 magnesium nitrite 
E) Mg(MnO4)2 magnesium permanganate 
A) Mn(NO2)2 manganese(II)nitrite 
B) Mg(NO3)2 magnesium nitrate 
C) Mn(NO3)2 manganese(II)nitrate 
D) Mg3N2 magnesium nitrite 
E) Mg(MnO4)2 magnesium permanganate

Question 4

The element chlorine is in a group known as the _______.

Accepted Answer

A) transition metals 
B) noble gases 
C) alkali metals 
D) alkaline earth metals 
E) halogens 
A) transition metals 
B) noble gases 
C) alkali metals 
D) alkaline earth metals 
E) halogens

Question 5

The correct name for NaHCO3 is ________.

Accepted Answer

A) sodium hydride 
B) persodium carbonate 
C) persodium hydroxide 
D) sodium bicarbonate 
E) carbonic acid 
A) sodium hydride 
B) persodium carbonate 
C) persodium hydroxide 
D) sodium bicarbonate 
E) carbonic acid

Question 6

Oxygen forms an ion with a charge of ________.

Accepted Answer

A) 2- 
B) 2+ 
C) 3- 
D) 3+ 
E) 6+ 
A) 2- 
B) 2+ 
C) 3- 
D) 3+ 
E) 6+

Question 7

The subatomic particles located in the nucleus with no overall charges are ________.

Accepted Answer

A) electrons 
B) protons 
C) neutrons 
D) protons and neutrons 
E) protons, neutrons, and electrons 
A) electrons 
B) protons 
C) neutrons 
D) protons and neutrons 
E) protons, neutrons, and electrons

Question 8

Which isotope has 36 electrons in an atom?

Accepted Answer

A)    Kr 
B)    Br 
C)    Se 
D)    Cl 
E)    Hg 
A)    Kr 
B)    Br 
C)    Se 
D)    Cl 
E)    Hg

Question 9

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) 33.333 
B) 220.40 
C) 220.24 
D) 219.00 
E) 219.67 
A) 33.333 
B) 220.40 
C) 220.24 
D) 219.00 
E) 219.67

Question 10

Which one of the following molecular formulas is also an empirical formula?

Accepted Answer

A) C6H6O2 
B) C2H6SO 
C) H2O2 
D) H2P4O6 
E) C6H6 
A) C6H6O2 
B) C2H6SO 
C) H2O2 
D) H2P4O6 
E) C6H6

Question 11

The species ________ contains 16 neutrons.

Accepted Answer

A) "31P" 
B) "34S2- " 
C) "36Cl" 
D) "80Br-" 
E) "16O" 
A) "31P" 
B) "34S2- " 
C) "36Cl" 
D) "80Br-" 
E) "16O"

Question 12

Which metal does not form cations of differing charges?

Accepted Answer

A) Na 
B) Cu 
C) Co 
D) Fe 
E) Sn 
A) Na 
B) Cu 
C) Co 
D) Fe 
E) Sn

Question 13

An atom of 13C contains ________ protons.

Accepted Answer

A) 6 
B) 19 
C) 7 
D) 9 
E) 13 
A) 6 
B) 19 
C) 7 
D) 9 
E) 13

Question 14

The name of the ionic compound (NH4)3PO4 is ________.

Accepted Answer

A) ammonium phosphate 
B) nitrogen hydrogen phosphate 
C) tetrammonium phosphate 
D) ammonia phosphide 
E) triammonium phosphate 
A) ammonium phosphate 
B) nitrogen hydrogen phosphate 
C) tetrammonium phosphate 
D) ammonia phosphide 
E) triammonium phosphate

Question 15

Which of the following compounds would you expect to be ionic?

Accepted Answer

A) C2H6 
B) NH3 
C) H2O2 
D) LiBr 
E) None of the above. 
A) C2H6 
B) NH3 
C) H2O2 
D) LiBr 
E) None of the above.

Question 16

Which compounds do not have the same empirical formula?

Accepted Answer

A) C2H2, C6H6 
B) CO, CO2 
C) C2H4, C3H6 
D) C2H4O2, C6H12O6 
E) C2H5COOCH3, CH3CHO 
A) C2H2, C6H6 
B) CO, CO2 
C) C2H4, C3H6 
D) C2H4O2, C6H12O6 
E) C2H5COOCH3, CH3CHO

Question 17

Vertical columns of the periodic table are known as ________.

Accepted Answer

A) metals 
B) periods 
C) nonmetals 
D) groups 
E) metalloids 
A) metals 
B) periods 
C) nonmetals 
D) groups 
E) metalloids

Question 18

The nucleus of an atom contains ________.

Accepted Answer

A) electrons 
B) protons, neutrons, and electrons 
C) protons and neutrons 
D) protons and electrons 
E) protons 
A) electrons 
B) protons, neutrons, and electrons 
C) protons and neutrons 
D) protons and electrons 
E) protons

Question 19

The possible oxidation numbers for iron are +1 and +2.

Accepted Answer

A) True 
 B)False

Question 20

The atomic number indicates ________.

Accepted Answer

A) the number of neutrons in a nucleus 
B) the total number of neutrons and protons in a nucleus 
C) the number of protons or electrons in a neutral atom 
D) the number of atoms in 1 g of an element 
E) the number of different isotopes of an element 
A) the number of neutrons in a nucleus 
B) the total number of neutrons and protons in a nucleus 
C) the number of protons or electrons in a neutral atom 
D) the number of atoms in 1 g of an element 
E) the number of different isotopes of an element

Exam 2: Atoms, Molecules, and Ions

Which one of the following is not true concerning cathode rays?

The correct name for CaH2 is ________.

Which formula/name pair is incorrect?

The element chlorine is in a group known as the _______.

The correct name for NaHCO3 is ________.

Oxygen forms an ion with a charge of ________.

The subatomic particles located in the nucleus with no overall charges are ________.

Which isotope has 36 electrons in an atom?

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.

Which one of the following molecular formulas is also an empirical formula?

The species ________ contains 16 neutrons.

Which metal does not form cations of differing charges?

An atom of 13C contains ________ protons.

The name of the ionic compound (NH4)3PO4 is ________.

Which of the following compounds would you expect to be ionic?

Which compounds do not have the same empirical formula?

Vertical columns of the periodic table are known as ________.

The nucleus of an atom contains ________.

The possible oxidation numbers for iron are +1 and +2.

The atomic number indicates ________.

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 CaH₂ is ________.

The correct name for NaHCO₃ is ________.

An atom of ¹³C contains ________ protons.

The name of the ionic compound (NH₄)₃PO₄ is ________.