Question 1

What is the molecular formula for butane?

Accepted Answer

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

Question 2

Of the following,the subatomic particle with the smallest mass is the ________.

Accepted Answer

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

Question 3

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 4

What is the molecular formula for 1-propanol?

Accepted Answer

A) CH4O 
B) C2H6O 
C) C3H8O 
D) C4H10O 
E) C5H12O 
A) CH4O 
B) C2H6O 
C) C3H8O 
D) C4H10O 
E) C5H12O

Question 5

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 6

Magnesium reacts with a certain element to form a compound with the general formula MgX.What would the most likely formula be for the compound formed between potassium and element X?

Accepted Answer

A) K2X 
B) KX2 
C) K2X3 
D) K2X2 
E) KX 
A) K2X 
B) KX2 
C) K2X3 
D) K2X2 
E) KX

Question 7

H2SeO4 is called selenic acid.

Accepted Answer

A) True 
 B)False

Question 8

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 9

________ are found uncombined,as monatomic species in nature.

Accepted Answer

A) Noble gases 
B) Chalcogens 
C) Alkali metals 
D) Alkaline earth metals 
E) Halogens 
A) Noble gases 
B) Chalcogens 
C) Alkali metals 
D) Alkaline earth metals 
E) Halogens

Question 10

The atomic number of an atom of 80Br is ________.

Accepted Answer

A) 115 
B) 35 
C) 45 
D) 73 
E) 80 
A) 115 
B) 35 
C) 45 
D) 73 
E) 80

Question 11

The charge on the manganese in the salt MnF3 is ________.

Accepted Answer

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

Question 12

The correct name for H2CO3 is ________.

Accepted Answer

A) carbonous acid 
B) hydrocarbonate 
C) carbonic acid 
D) carbohydrate 
E) carbohydric acid 
A) carbonous acid 
B) hydrocarbonate 
C) carbonic acid 
D) carbohydrate 
E) carbohydric acid

Question 13

The formula for aluminum hydroxide is ________.

Accepted Answer

A) AlOH 
B) Al3OH 
C) Al2(OH)3 
D) Al(OH)3 
E) Al2O3 
A) AlOH 
B) Al3OH 
C) Al2(OH)3 
D) Al(OH)3 
E) Al2O3

Question 14

Consider the following selected postulates of Dalton's atomic theory: 
(i)Each element is composed of extremely small particles called atoms.
(ii)Atoms are indivisible.
(iii)Atoms of a given element are identical.
(iv)Atoms of different elements are different and have different properties.
Which of the postulates is(are)no longer considered valid?

Accepted Answer

A) (i)and (ii) 
B) (ii)only 
C) (ii)and (iii) 
D) (iii)only 
E) (iii)and (iv) 
A) (i)and (ii) 
B) (ii)only 
C) (ii)and (iii) 
D) (iii)only 
E) (iii)and (iv)

Question 15

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 16

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 17

Which pair of elements would you expect to exhibit the greatest similarity in their physical and chemical properties?

Accepted Answer

A) H, Li 
B) Cs, Ba 
C) Ca, Sr 
D) Ga, Ge 
E) C, O 
A) H, Li 
B) Cs, Ba 
C) Ca, Sr 
D) Ga, Ge 
E) C, O

Question 18

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 19

Which one of the following is most likely to gain electrons when forming an ion?

Accepted Answer

A) Mn 
B) Zn 
C) F 
D) Li 
E) Al 
A) Mn 
B) Zn 
C) F 
D) Li 
E) Al

Question 20

The correct name for Na2O2 is ________.

Accepted Answer

A) sodium oxide 
B) sodium dioxide 
C) disodium dioxide 
D) sodium peroxide 
E) disodium oxide 
A) sodium oxide 
B) sodium dioxide 
C) disodium dioxide 
D) sodium peroxide 
E) disodium oxide

Exam 2: Atoms, molecules, and Ions

What is the molecular formula for butane?

Of the following,the subatomic particle with the smallest mass is the ________.

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

What is the molecular formula for 1-propanol?

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.

Magnesium reacts with a certain element to form a compound with the general formula MgX.What would the most likely formula be for the compound formed between potassium and element X?

H2SeO4 is called selenic acid.

The nucleus of an atom contains ________.

________ are found uncombined,as monatomic species in nature.

The atomic number of an atom of 80Br is ________.

The charge on the manganese in the salt MnF3 is ________.

The correct name for H2CO3 is ________.

The formula for aluminum hydroxide is ________.

Elements in Group 8A are known as the ________.

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

Which pair of elements would you expect to exhibit the greatest similarity in their physical and chemical properties?

The correct name for K2S is ________.

Which one of the following is most likely to gain electrons when forming an ion?

The correct name for Na2O2 is ________.

Introduction: Matter, energy, and Measurement

Chemical Reactions and Reaction Stoichiometry

Reactions in Aqueous Solution

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

H₂SeO₄ is called selenic acid.

The atomic number of an atom of ⁸⁰Br is ________.

The charge on the manganese in the salt MnF₃ is ________.

The correct name for H₂CO₃ is ________.

The correct name for K₂S is ________.

The correct name for Na₂O₂ is ________.