Question 1

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 2

Sulfur forms an ion with a charge of ________.

Accepted Answer

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

Question 3

Which metal forms cations of differing charges?

Accepted Answer

A) K 
B) Cs 
C) Ba 
D) Al 
E) Sn 
A) K 
B) Cs 
C) Ba 
D) Al 
E) Sn

Question 4

Magnesium and sulfur form an ionic compound with the formula ________.

Accepted Answer

A) MgS 
B) Mg2S 
C) MgS2 
D) Mg2S2 
E) Mg2S3 
A) MgS 
B) Mg2S 
C) MgS2 
D) Mg2S2 
E) Mg2S3

Question 5

The correct name for HClO3 is ________.

Accepted Answer

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

Question 6

The element ________ is the most similar to sodium in chemical and physical properties.

Accepted Answer

A) Mg 
B) Br 
C) N 
D) K 
E) Sr 
A) Mg 
B) Br 
C) N 
D) K 
E) Sr

Question 7

The correct name for H2SO3 is ________.

Accepted Answer

A) sulfuric acid 
B) sulfurous acid 
C) hydrosulfuric acid 
D) hydrosulfic acid 
E) sulfur hydroxide 
A) sulfuric acid 
B) sulfurous acid 
C) hydrosulfuric acid 
D) hydrosulfic acid 
E) sulfur hydroxide

Question 8

Potassium forms an ion with a charge of ________.

Accepted Answer

A) 2+ 
B) 1- 
C) 1+ 
D) 2- 
E) 0 
A) 2+ 
B) 1- 
C) 1+ 
D) 2- 
E) 0

Question 9

A certain mass of carbon reacts with 128 g of oxygen to form carbon monoxide. ________ grams of oxygen would react with that same mass of carbon to form carbon dioxide, according to the law of multiple proportions.

Accepted Answer

A) 25.6 
B) 64.0 
C) 128 
D) 1280 
E) 256 
A) 25.6 
B) 64.0 
C) 128 
D) 1280 
E) 256

Question 10

Fluorine forms an ion with a charge of ________.

Accepted Answer

A) 1- 
B) 1+ 
C) 2+ 
D) 3+ 
E) 3- 
A) 1- 
B) 1+ 
C) 2+ 
D) 3+ 
E) 3-

Question 11

There are ________ protons, ________ neutrons, and ________ electrons in   U+5.

Accepted Answer

A) 146, 92, 92 
B) 92, 146, 87 
C) 92, 146, 92 
D) 92, 92, 87 
E) 146, 92, 146 
A) 146, 92, 92 
B) 92, 146, 87 
C) 92, 146, 92 
D) 92, 92, 87 
E) 146, 92, 146

Question 12

The correct name for Al2O3 is ________.

Accepted Answer

A) aluminum oxide 
B) dialuminum oxide 
C) dialuminum trioxide 
D) aluminum hydroxide 
E) aluminum trioxide 
A) aluminum oxide 
B) dialuminum oxide 
C) dialuminum trioxide 
D) aluminum hydroxide 
E) aluminum trioxide

Question 13

Which one of the following basic forces is so small that it has no chemical significance?

Accepted Answer

A) weak nuclear force 
B) strong nuclear force 
C) electromagnetism 
D) gravity 
E) Coulomb's law 
A) weak nuclear force 
B) strong nuclear force 
C) electromagnetism 
D) gravity 
E) Coulomb's law

Question 14

The mass number of an atom of 14C is ________.

Accepted Answer

A) 6 
B) 20 
C) 8 
D) 14 
E) 10 
A) 6 
B) 20 
C) 8 
D) 14 
E) 10

Question 15

The elements in groups 1A, 6A, and 7A are called ________, respectively.

Accepted Answer

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

Question 16

Vanadium has two naturally occurring isotopes, 50V with an atomic mass of 49.9472 amu and 51V with an atomic mass of 50.9440. The atomic weight of vanadium is 50.9415. The percent abundances of the vanadium isotopes are ________% 50V and ________% 51V.

Accepted Answer

A) 0.25, 99.75 
B) 99.75, 0.25 
C) 49, 51 
D) 1.0, 99 
E) 99, 1.0 
A) 0.25, 99.75 
B) 99.75, 0.25 
C) 49, 51 
D) 1.0, 99 
E) 99, 1.0

Question 17

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 18

The proper formula for the hydronium ion is ________.

Accepted Answer

A) H- 
B) OH- 
C) N3- 
D) H3O+ 
E) NH4+ 
A) H- 
B) OH- 
C) N3- 
D) H3O+ 
E) NH4+

Question 19

Oxygen is a ________ and nitrogen is a ________.

Accepted Answer

A) metal, metalloid 
B) nonmetal, metal 
C) metalloid, metalloid 
D) nonmetal, nonmetal 
E) nonmetal, metalloid 
A) metal, metalloid 
B) nonmetal, metal 
C) metalloid, metalloid 
D) nonmetal, nonmetal 
E) nonmetal, metalloid

Question 20

How many protons are there in one atom of 71Ga?

Accepted Answer

A) 40 
B) 70 
C) 71 
D) 31 
E) 13 
A) 40 
B) 70 
C) 71 
D) 31 
E) 13

Exam 2: Atoms, Molecules, and Ions

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

Sulfur forms an ion with a charge of ________.

Which metal forms cations of differing charges?

Magnesium and sulfur form an ionic compound with the formula ________.

The correct name for HClO3 is ________.

The element ________ is the most similar to sodium in chemical and physical properties.

The correct name for H2SO3 is ________.

Potassium forms an ion with a charge of ________.

A certain mass of carbon reacts with 128 g of oxygen to form carbon monoxide. ________ grams of oxygen would react with that same mass of carbon to form carbon dioxide, according to the law of multiple proportions.

Fluorine forms an ion with a charge of ________.

There are ________ protons, ________ neutrons, and ________ electrons in U+5.

The correct name for Al2O3 is ________.

Which one of the following basic forces is so small that it has no chemical significance?

The mass number of an atom of 14C is ________.

The elements in groups 1A, 6A, and 7A are called ________, respectively.

Vanadium has two naturally occurring isotopes, 50V with an atomic mass of 49.9472 amu and 51V with an atomic mass of 50.9440. The atomic weight of vanadium is 50.9415. The percent abundances of the vanadium isotopes are ________% 50V and ________% 51V.

The correct name for HNO2 is ________.

The proper formula for the hydronium ion is ________.

Oxygen is a ________ and nitrogen is a ________.

How many protons are there in one atom of 71Ga?

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 HClO₃ is ________.

The correct name for H₂SO₃ is ________.

There are protons, neutrons, and electrons in U⁺⁵.

The correct name for Al₂O₃ is ________.

The mass number of an atom of ¹⁴_{C is ________.}

Vanadium has two naturally occurring isotopes, ⁵⁰V with an atomic mass of 49.9472 amu and⁵¹V with an atomic mass of 50.9440. The atomic weight of vanadium is 50.9415. The percent abundances of the vanadium isotopes are % ⁵⁰V and % ⁵¹V.

The correct name for HNO₂ is ________.

Oxygen is a and nitrogen is a .

How many protons are there in one atom of ⁷¹Ga?