Question 1

The molecular formula of a compound is always __________ the empirical formula.

Accepted Answer

A) more complex than 
B) different from 
C) an integral multiple of 
D) the same as 
E) simpler than 
A) more complex than 
B) different from 
C) an integral multiple of 
D) the same as 
E) simpler than C

Question 2

How many electrons does the Al3+ ion possess?

Accepted Answer

A) 16 
B) 10 
C) 6 
D) 0 
E) 13 
A) 16 
B) 10 
C) 6 
D) 0 
E) 13 B

Question 3

Which pair of elements is most apt to form a molecular compound with each other?

Accepted Answer

A) aluminum, oxygen 
B) magnesium, iodine 
C) sulfur, fluorine 
D) potassium, lithium 
E) barium, bromine 
A) aluminum, oxygen 
B) magnesium, iodine 
C) sulfur, fluorine 
D) potassium, lithium 
E) barium, bromine C

Question 4

Elements in Group 8A are known as the __________.

Accepted Answer

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

Question 5

Potassium is a __________ and chlorine is a __________.

Accepted Answer

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

Question 6

Calcium is a __________ and silver is a __________.

Accepted Answer

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

Question 7

The formula of a salt is XCI2. The X-ion in this salt has 27 electrons. The metal X is __________.

Accepted Answer

A) Ni 
B) Cu 
C) Co 
D) Fe 
E) Zn 
A) Ni 
B) Cu 
C) Co 
D) Fe 
E) Zn

Question 8

The proper formula for the hydronium ion is __________.

Accepted Answer

A) H- 
B) OH- 
C) N-3 
D) H3O+ 
E) NH4+ 
A) H- 
B) OH- 
C) N-3 
D) H3O+ 
E) NH4+

Question 9

Which one of the following is not one of the postulates of Dalton's atomic theory?

Accepted Answer

A) Atoms are composed of protons, neutrons, and electrons. 
B) All atoms of a given element are identical; the atoms of different elements are different and have different properties. 
C) Atoms of an element are not changed into different types of atoms by chemical reactions: atoms are neither created nor destroyed in chemical reactions. 
D) Compounds are formed when atoms of more than one element combine; a given compound always has the same relative number and kind of atoms. 
E) Each element is composed of extremely small particles called atoms. 
A) Atoms are composed of protons, neutrons, and electrons. 
B) All atoms of a given element are identical; the atoms of different elements are different and have different properties. 
C) Atoms of an element are not changed into different types of atoms by chemical reactions: atoms are neither created nor destroyed in chemical reactions. 
D) Compounds are formed when atoms of more than one element combine; a given compound always has the same relative number and kind of atoms. 
E) Each element is composed of extremely small particles called atoms.

Question 10

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 11

What is the molecular formula for 1-propanol?

Accepted Answer

A) CH3OH 
B) C2H5OH 
C) C3H7OH 
D) C4H9OH 
E) C5H11OH 
A) CH3OH 
B) C2H5OH 
C) C3H7OH 
D) C4H9OH 
E) C5H11OH

Question 12

Which formula/name pair is incorrect?

Accepted Answer

A) Mn(NO2)4 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)4 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 13

Which element forms an ion with the same charge as the ammonium ion?

Accepted Answer

A) potassium 
B) chlorine 
C) calcium 
D) oxygen 
E) nitrogen 
A) potassium 
B) chlorine 
C) calcium 
D) oxygen 
E) nitrogen

Question 14

In the periodic table, the elements are arranged in __________.

Accepted Answer

A) alphabetical order 
B) order of increasing atomic number 
C) order of increasing metallic properties 
D) order of increasing neutron content 
E) reverse alphabetical order 
A) alphabetical order 
B) order of increasing atomic number 
C) order of increasing metallic properties 
D) order of increasing neutron content 
E) reverse alphabetical order

Question 15

Sodium forms an ion with a charge of __________.

Accepted Answer

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

Question 16

Of the following, the smallest and lightest subatomic particle is the __________.

Accepted Answer

A) neutron 
B) proton 
C) electron 
D) nucleus 
E) alpha particle 
A) neutron 
B) proton 
C) electron 
D) nucleus 
E) alpha particle

Question 17

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

Accepted Answer

A) H2O 
B) CO2 
C) SrCI2 
D) SO2 
E) H2S 
A) H2O 
B) CO2 
C) SrCI2 
D) SO2 
E) H2S

Question 18

Iodine forms an ion with a charge of __________.

Accepted Answer

A) 7- 
B) 1+ 
C) 2- 
D) 2+ 
E) 1- 
A) 7- 
B) 1+ 
C) 2- 
D) 2+ 
E) 1-

Question 19

Aluminum reacts with a certain nonmetallic element to form a compound with the general formula AlX. Element X is a diatomic gas at room temperature. Element X must be __________.

Accepted Answer

A) oxygen 
B) fluorine 
C) chlorine 
D) nitrogen 
E) sulfur 
A) oxygen 
B) fluorine 
C) chlorine 
D) nitrogen 
E) sulfur

Question 20

Horizontal rows of the periodic table are known as __________.

Accepted Answer

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

Exam 2: Atoms, Molecules, and Ions

The molecular formula of a compound is always __________ the empirical formula.

How many electrons does the Al3+ ion possess?

Which pair of elements is most apt to form a molecular compound with each other?

Elements in Group 8A are known as the __________.

Potassium is a __________ and chlorine is a __________.

Calcium is a __________ and silver is a __________.

The formula of a salt is XCI2. The X-ion in this salt has 27 electrons. The metal X is __________.

The proper formula for the hydronium ion is __________.

Which one of the following is not one of the postulates of Dalton's atomic theory?

Potassium forms an ion with a charge of __________.

What is the molecular formula for 1-propanol?

Which formula/name pair is incorrect?

Which element forms an ion with the same charge as the ammonium ion?

In the periodic table, the elements are arranged in __________.

Sodium forms an ion with a charge of __________.

Of the following, the smallest and lightest subatomic particle is the __________.

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

Iodine forms an ion with a charge of __________.

Aluminum reacts with a certain nonmetallic element to form a compound with the general formula AlX. Element X is a diatomic gas at room temperature. Element X must be __________.

Horizontal rows of the periodic table are known as __________.

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

How many electrons does the Al³⁺ ion possess?

Potassium is a and chlorine is a .

Calcium is a and silver is a .

The formula of a salt is XCI₂. The X-ion in this salt has 27 electrons. The metal X is __________.