Question 1

An atom of the isotope sulfur-31 consists of how many protons,neutrons,and electrons? (p = proton,n = neutron,e = electron)

Accepted Answer

A) 15 p,16 n,15 e 
B) 16 p,15 n,16 e 
C) 16 p,31 n,16 e 
D) 32 p,31 n,32 e 
E) 16 p,16 n,15 e 
A) 15 p,16 n,15 e 
B) 16 p,15 n,16 e 
C) 16 p,31 n,16 e 
D) 32 p,31 n,32 e 
E) 16 p,16 n,15 e B

Question 2

Atoms of the same element with different mass numbers are called

Accepted Answer

A) ions. 
B) neutrons. 
C) chemical groups. 
D) chemical families. 
E) isotopes. 
A) ions. 
B) neutrons. 
C) chemical groups. 
D) chemical families. 
E) isotopes. E

Question 3

There is only one distinct empirical formula for each compound that exists.

Accepted Answer

A) True 
 B)False  True

Question 4

Which of the following is the oxoanion of bromine called the bromate ion?

Accepted Answer

A) BrO3- 
B) BrO32- 
C) BrO42- 
D) BrO2- 
E) BrO- 
A) BrO3- 
B) BrO32- 
C) BrO42- 
D) BrO2- 
E) BrO-

Question 5

Which of the following is a metalloid?

Accepted Answer

A) Carbon,C,Z = 6 
B) Sulfur,S,Z = 16 
C) Germanium,Ge,Z = 32 
D) Iridium,Ir,Z = 77 
E) Bromine,Br,Z = 35 
A) Carbon,C,Z = 6 
B) Sulfur,S,Z = 16 
C) Germanium,Ge,Z = 32 
D) Iridium,Ir,Z = 77 
E) Bromine,Br,Z = 35

Question 6

Which of these elements is chemically similar to potassium?

Accepted Answer

A) calcium 
B) arsenic 
C) phosphorus 
D) cerium 
E) cesium 
A) calcium 
B) arsenic 
C) phosphorus 
D) cerium 
E) cesium

Question 7

Which of the following is a type of radioactive radiation that consists of electrons and is deflected away from the negatively charged plate?

Accepted Answer

A) α rays 
B) β rays 
C) γ rays 
D) δ rays 
E) ε rays 
A) α rays 
B) β rays 
C) γ rays 
D) δ rays 
E) ε rays

Question 8

Iron(III)chloride hexahydrate is used as a coagulant for sewage and industrial wastes.What is its formula?

Accepted Answer

A) Fe(Cl·6H2O)3 
B) Fe3Cl·6H2O 
C) FeCl3(H2O)6 
D) Fe3Cl(H2O)6 
E) FeCl3·6H2O 
A) Fe(Cl·6H2O)3 
B) Fe3Cl·6H2O 
C) FeCl3(H2O)6 
D) Fe3Cl(H2O)6 
E) FeCl3·6H2O

Question 9

C(graphite)and C(diamond)are examples of

Accepted Answer

A) isotopes of carbon. 
B) allotropes of carbon. 
C) the law of definite proportions. 
D) different carbon ions. 
A) isotopes of carbon. 
B) allotropes of carbon. 
C) the law of definite proportions. 
D) different carbon ions.

Question 10

The chemical name for ClO3- is "chlorate ion".What is the common name for HClO3?

Accepted Answer

A) hydrochloric acid 
B) chloroform 
C) hydrogen trioxychloride 
D) chlorous acid 
E) chloric acid 
A) hydrochloric acid 
B) chloroform 
C) hydrogen trioxychloride 
D) chlorous acid 
E) chloric acid

Question 11

Which one of these species is an ion?

Accepted Answer

A) B3+ 
B) NaCl 
C) He 
D) (14
C)  
E) None of these species is an ion. 
A) B3+ 
B) NaCl 
C) He 
D) (14
C)  
E) None of these species is an ion.

Question 12

What is the name of Mn(CO3)2?

Accepted Answer

A) manganese carbide 
B) magnesium(IV)carbonate 
C) manganese(II)carbonate 
D) magnesium(II)carbonate 
E) manganese(IV)carbonate 
A) manganese carbide 
B) magnesium(IV)carbonate 
C) manganese(II)carbonate 
D) magnesium(II)carbonate 
E) manganese(IV)carbonate

Question 13

Which of these elements is chemically similar to magnesium?

Accepted Answer

A) Sulfur 
B) Calcium 
C) Iron 
D) Nickel 
E) Potassium 
A) Sulfur 
B) Calcium 
C) Iron 
D) Nickel 
E) Potassium

Question 14

What is the formula for the permanganate ion?

Accepted Answer

A) MnO2- 
B) MnO4- 
C) MgO42- 
D) Mn2O7- 
E) MgO22- 
A) MnO2- 
B) MnO4- 
C) MgO42- 
D) Mn2O7- 
E) MgO22-

Question 15

The empirical formula of C6H6 is CH.

Accepted Answer

A) True 
 B)False

Question 16

______________ are atoms that have the same atomic number (Z)but different mass numbers (A).

Accepted Answer

The answer of ______________ are atoms that have the same...

Question 17

Two isotopes of an element differ only in their

Accepted Answer

A) symbol. 
B) atomic number. 
C) atomic mass. 
D) number of protons. 
E) number of electrons. 
A) symbol. 
B) atomic number. 
C) atomic mass. 
D) number of protons. 
E) number of electrons.

Question 18

What binary compound would be formed from barium ions and fluoride ions?

Accepted Answer

A) Ba2F3 
B) BaF3 
C) BaF 
D) Ba2F 
E) BaF2 
A) Ba2F3 
B) BaF3 
C) BaF 
D) Ba2F 
E) BaF2

Question 19

How many neutrons are there in an atom of lead whose mass number is 208?

Accepted Answer

A) 82 
B) 126 
C) 208 
D) 290 
E) none of them 
A) 82 
B) 126 
C) 208 
D) 290 
E) none of them

Question 20

Millikan's oil-drop experiment

Accepted Answer

A) established the charge on an electron. 
B) showed that all oil drops carried the same charge. 
C) provided support for the nuclear model of the atom. 
D) suggested that some oil drops carried fractional numbers of electrons. 
E) suggested the presence of a neutral particle in the atom. 
A) established the charge on an electron. 
B) showed that all oil drops carried the same charge. 
C) provided support for the nuclear model of the atom. 
D) suggested that some oil drops carried fractional numbers of electrons. 
E) suggested the presence of a neutral particle in the atom.

Exam 2: Atoms Molecules and Ions

An atom of the isotope sulfur-31 consists of how many protons,neutrons,and electrons? (p = proton,n = neutron,e = electron)

Atoms of the same element with different mass numbers are called

There is only one distinct empirical formula for each compound that exists.

Which of the following is the oxoanion of bromine called the bromate ion?

Which of the following is a metalloid?

Which of these elements is chemically similar to potassium?

Which of the following is a type of radioactive radiation that consists of electrons and is deflected away from the negatively charged plate?

Iron(III)chloride hexahydrate is used as a coagulant for sewage and industrial wastes.What is its formula?

C(graphite)and C(diamond)are examples of

The chemical name for ClO3- is "chlorate ion".What is the common name for HClO3?

Which one of these species is an ion?

What is the name of Mn(CO3)2?

Which of these elements is chemically similar to magnesium?

What is the formula for the permanganate ion?

The empirical formula of C6H6 is CH.

______________ are atoms that have the same atomic number (Z)but different mass numbers (A).

Two isotopes of an element differ only in their

What binary compound would be formed from barium ions and fluoride ions?

How many neutrons are there in an atom of lead whose mass number is 208?

Millikan's oil-drop experiment

Chemistry: the Central Science

Stoichiometry Ratios of Combination

Reactions in Aqueous Solutions

Thermochemistry

Quantum Theory and the Electronic Structure of Atoms

Electron Configuration and the Periodic Table

Chemical Bonding I Basic Concepts

Chemical Bonding Ii Molecular Geometry and Bonding Theories

Gases

Intermolecular Forces and the Physical Properties of Liquids and Solids

Modern Materials

Physical Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Acid-Base Equilibria and Solubility Equilibria

Entropy Free Energy and Equilibrium

Electrochemistry

Nuclear Chemistry

Environmental Chemistry

Coordination Chemistry

Metallurgy and the Chemistry of Metals

Nonmetallic Elements and Their Compounds

Organic Chemistry

Filters

The chemical name for ClO₃^- is "chlorate ion".What is the common name for HClO₃?

What is the name of Mn(CO₃)₂?

The empirical formula of C₆H₆ is CH.