Question 1

Identify the halogen from period 4.

Accepted Answer

A)  Br 
B)  I 
C)  Kr 
D)  Ar 
E)  K 
A)  Br 
B)  I 
C)  Kr 
D)  Ar 
E)  K A

Question 2

What is the correct formula for an ionic compound that contains aluminum ions and chloride ions?

Accepted Answer

A)  AlCl 
B)  AlCl2 
C)  AlCl3 
D)  Al2Cl3 
E)  Al3Cl2 
A)  AlCl 
B)  AlCl2 
C)  AlCl3 
D)  Al2Cl3 
E)  Al3Cl2 C

Question 3

How many elements are contained in period 2?

Accepted Answer

A)  3 
B)  8 
C)  10 
D)  18 
E)  32 
A)  3 
B)  8 
C)  10 
D)  18 
E)  32 B

Question 4

Which group of three elements contains a transition metal,a halogen,and a noble gas?

Accepted Answer

A)  S,I,Cu 
B)  Br,Kr,Ba 
C)  Ar,Hg,Rn 
D)  Ce,N,He 
E)  Cu,I,Xe 
A)  S,I,Cu 
B)  Br,Kr,Ba 
C)  Ar,Hg,Rn 
D)  Ce,N,He 
E)  Cu,I,Xe

Question 5

What is the correct name for K3PO4?

Accepted Answer

A)  tripotassium phosphate 
B)  potassium(I)monophosphorus tetraoxide 
C)  potassium(I)phosphate 
D)  potassium phosphate 
E)  potassium phosphide 
A)  tripotassium phosphate 
B)  potassium(I)monophosphorus tetraoxide 
C)  potassium(I)phosphate 
D)  potassium phosphate 
E)  potassium phosphide

Question 6

F-20,a radioactive isotope of fluorine,has

Accepted Answer

A)  9 protons,10 neutrons,and 1 electron. 
B)  9 protons,10 neutrons,and 9 electrons. 
C)  9 protons,11 neutrons,and 9 electrons. 
D)  10 protons,9 neutrons,and 1 electron. 
E)  10 protons,10 neutrons,and 10 electrons. 
A)  9 protons,10 neutrons,and 1 electron. 
B)  9 protons,10 neutrons,and 9 electrons. 
C)  9 protons,11 neutrons,and 9 electrons. 
D)  10 protons,9 neutrons,and 1 electron. 
E)  10 protons,10 neutrons,and 10 electrons.

Question 7

What is the correct name for PF5?

Accepted Answer

A)  phosphorus pentafluoride 
B)  phosphorus(V)fluorine 
C)  phosphorofluoride 
D)  pentafluorophosphorus 
E)  pentafluorophosphate 
A)  phosphorus pentafluoride 
B)  phosphorus(V)fluorine 
C)  phosphorofluoride 
D)  pentafluorophosphorus 
E)  pentafluorophosphate

Question 8

What is the correct name for CCl4?

Accepted Answer

A)  carbon chlorine 
B)  tetracarbon chloride 
C)  carbon tetrachloride 
D)  carbon(IV)chloride 
E)  tetrachlorocarbide 
A)  carbon chlorine 
B)  tetracarbon chloride 
C)  carbon tetrachloride 
D)  carbon(IV)chloride 
E)  tetrachlorocarbide

Question 9

What is the correct name for Al2O3?

Accepted Answer

A)  alum 
B)  aluminum trioxide 
C)  aluminum ozinide 
D)  aluminum oxide 
E)  dialuminum trioxide 
A)  alum 
B)  aluminum trioxide 
C)  aluminum ozinide 
D)  aluminum oxide 
E)  dialuminum trioxide

Question 10

Using the laws of constant composition and the conservation of mass,complete the molecular picture of hydrogen molecules (circles)reacting with oxygen molecules (squares)to give water.

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 11

Which three elements are likely to have similar chemical and physical properties?

Accepted Answer

A)  boron,silicon,and germanium 
B)  sodium,magnesium,and aluminum 
C)  sodium,potassium,and rubidium 
D)  oxygen,sulfur,and chlorine 
E)  carbon,nitrogen,and oxygen 
A)  boron,silicon,and germanium 
B)  sodium,magnesium,and aluminum 
C)  sodium,potassium,and rubidium 
D)  oxygen,sulfur,and chlorine 
E)  carbon,nitrogen,and oxygen

Question 12

How many nonmetallic elements are there in group 13?

Accepted Answer

A)  0 
B)  1 
C)  2 
D)  3 
E)  4 
A)  0 
B)  1 
C)  2 
D)  3 
E)  4

Question 13

Silver has two stable isotopes with masses of 106.90509 amu and 108.9047 amu.The average molar mass of silver is 107.868 amu.What is the percent abundance of each isotope?

Accepted Answer

A)  50.0% Ag-107 and 50.0% Ag-109 
B)  51.8% Ag-107 and 48.2% Ag-109 
C)  55.4% Ag-107 and 44.6% Ag-109 
D)  48.2% Ag-107 and 51.8% Ag-109 
E)  44.6% Ag-107 and 55.4% Ag-109 
A)  50.0% Ag-107 and 50.0% Ag-109 
B)  51.8% Ag-107 and 48.2% Ag-109 
C)  55.4% Ag-107 and 44.6% Ag-109 
D)  48.2% Ag-107 and 51.8% Ag-109 
E)  44.6% Ag-107 and 55.4% Ag-109

Question 14

Which two atoms below have the same number of neutrons? 
${ }_{8}^{15} \mathrm{O}$ , ${ }_{8}^{16} \mathrm{O}$ , ${ }_{9}^{20} \mathrm{F}$ , ${ }_{20}^{20} \mathrm{Ne}$ , ${ }_{11}^{22} \mathrm{Na}$

Accepted Answer

A)  ${ }_{8}^{15} \mathrm{O}$ and ${ }_{8}^{16} \mathrm{O}$ 
B)  ${ }_{8}^{16} \mathrm{O}$ and ${ }_{11}^{22} \mathrm{Na}$ 
C)  ${ }_{9}^{20} \mathrm{F}$ and ${ }_{20}^{20} \mathrm{Ne}$ 
D)  ${ }_{9}^{20} \mathrm{F}$ and ${ }_{11}^{22} \mathrm{Na}$ 
E)  ${ }_{20}^{20} \mathrm{Ne}$ and ${ }_{11}^{22} \mathrm{Na}$ 
A)  ${ }_{8}^{15} \mathrm{O}$ and ${ }_{8}^{16} \mathrm{O}$ 
B)  ${ }_{8}^{16} \mathrm{O}$ and ${ }_{11}^{22} \mathrm{Na}$ 
C)  ${ }_{9}^{20} \mathrm{F}$ and ${ }_{20}^{20} \mathrm{Ne}$ 
D)  ${ }_{9}^{20} \mathrm{F}$ and ${ }_{11}^{22} \mathrm{Na}$ 
E)  ${ }_{20}^{20} \mathrm{Ne}$ and ${ }_{11}^{22} \mathrm{Na}$

Question 15

Which species has 63 neutrons?

Accepted Answer

A)  ${ }_{43}^{112} \mathrm{Cd}$ 
B)  ${ }_{49}^{112} \text { In }$ 
C)  ${ }_{69}^{63} \mathrm{Cu}$ 
D)  ${ }_{63}^{152} \mathrm{Eu}$ 
E)  none of the above 
A)  ${ }_{43}^{112} \mathrm{Cd}$ 
B)  ${ }_{49}^{112} \text { In }$ 
C)  ${ }_{69}^{63} \mathrm{Cu}$ 
D)  ${ }_{63}^{152} \mathrm{Eu}$ 
E)  none of the above

Question 16

Which two of the following elements are abundant in the Earth's crust,but missing from the human body: O,Al,Si,Fe,C,N?

Accepted Answer

A)  O and Fe 
B)  Si and C 
C)  Al and Si 
D)  O and N 
E)  Fe and N 
A)  O and Fe 
B)  Si and C 
C)  Al and Si 
D)  O and N 
E)  Fe and N

Question 17

Rubidium has two naturally occurring isotopes.The average mass of Rb is 85.4678 amu.If 72.15% of Rb is found as Rb-85 (84.9117 amu),what is the mass of the other isotope?

Accepted Answer

A)  0.56 amu 
B)  85.68 amu 
C)  86.91 amu 
D)  86.02 amu 
E)  83.47 amu 
A)  0.56 amu 
B)  85.68 amu 
C)  86.91 amu 
D)  86.02 amu 
E)  83.47 amu

Question 18

What is the correct formula for barium perchlorate?

Accepted Answer

A)  BaClO4 
B)  BaClO3 
C)  Ba(ClO4)2 
D)  Ba(ClO3)2 
E)  Ba(ClO3)3 
A)  BaClO4 
B)  BaClO3 
C)  Ba(ClO4)2 
D)  Ba(ClO3)2 
E)  Ba(ClO3)3

Question 19

Two isotopes of a given element will have the same number of ____,but a different number of ____ in their nucleus.

Accepted Answer

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

Question 20

Which two of the ions below have the same number of electrons? 
${ }_{53}^{127} \mathrm{I}^{-}$ , ${ }_{50}^{119} \mathrm{Sn}^{2+}$ , ${ }_{82}^{207} \mathrm{~Pb}^{2+}$ , ${ }_{82}^{207} \mathrm{~Pb}^{4+}$ , ${ }_{56}^{137} \mathrm{Ba}^{2+}$

Accepted Answer

A)  ${ }_{53}^{127} \mathrm{I}^{-}$ and ${ }_{56}^{137} \mathrm{Ba}^{2+}$ 
B)  ${ }_{53}^{127} \mathrm{I}^{-}$ and ${ }_{50}^{119} \mathrm{Sn}^{2+}$ 
C)  ${ }_{82}^{207} \mathrm{~Pb}^{2+}$ and ${ }_{56}^{137} \mathrm{Ba}^{2+}$ 
D)  ${ }_{50}^{119} \mathrm{Sn}^{2+}$ and ${ }_{56}^{137} \mathrm{Ba}^{2+}$ 
E)  ${ }_{82}^{207} \mathrm{~Pb}^{2+}$ and ${ }_{82}^{207} \mathrm{~Pb}^{4+}$ 
A)  ${ }_{53}^{127} \mathrm{I}^{-}$ and ${ }_{56}^{137} \mathrm{Ba}^{2+}$ 
B)  ${ }_{53}^{127} \mathrm{I}^{-}$ and ${ }_{50}^{119} \mathrm{Sn}^{2+}$ 
C)  ${ }_{82}^{207} \mathrm{~Pb}^{2+}$ and ${ }_{56}^{137} \mathrm{Ba}^{2+}$ 
D)  ${ }_{50}^{119} \mathrm{Sn}^{2+}$ and ${ }_{56}^{137} \mathrm{Ba}^{2+}$ 
E)  ${ }_{82}^{207} \mathrm{~Pb}^{2+}$ and ${ }_{82}^{207} \mathrm{~Pb}^{4+}$

Exam 2: Atoms, molecules, and Ions

Identify the halogen from period 4.

What is the correct formula for an ionic compound that contains aluminum ions and chloride ions?

How many elements are contained in period 2?

Which group of three elements contains a transition metal,a halogen,and a noble gas?

What is the correct name for K3PO4?

F-20,a radioactive isotope of fluorine,has

What is the correct name for PF5?

What is the correct name for CCl4?

What is the correct name for Al2O3?

Using the laws of constant composition and the conservation of mass,complete the molecular picture of hydrogen molecules (circles)reacting with oxygen molecules (squares)to give water.

Which three elements are likely to have similar chemical and physical properties?

How many nonmetallic elements are there in group 13?

Silver has two stable isotopes with masses of 106.90509 amu and 108.9047 amu.The average molar mass of silver is 107.868 amu.What is the percent abundance of each isotope?

Which two atoms below have the same number of neutrons? 815O{ }_{8}^{15} \mathrm{O}815​O , 816O{ }_{8}^{16} \mathrm{O}816​O , 920F{ }_{9}^{20} \mathrm{F}920​F , 2020Ne{ }_{20}^{20} \mathrm{Ne}2020​Ne , 1122Na{ }_{11}^{22} \mathrm{Na}1122​Na

Which species has 63 neutrons?

Which two of the following elements are abundant in the Earth's crust,but missing from the human body: O,Al,Si,Fe,C,N?

Rubidium has two naturally occurring isotopes.The average mass of Rb is 85.4678 amu.If 72.15% of Rb is found as Rb-85 (84.9117 amu),what is the mass of the other isotope?

What is the correct formula for barium perchlorate?

Two isotopes of a given element will have the same number of ____,but a different number of ____ in their nucleus.

Matter and Measurements

Mass Relations in Chemistry;stoichiometry

Reactions in Aqueous Solution

Gases

Electronic Structure and the Periodic Table

Covalent Bonding

Thermochemistry

Liquids and Solids

Solutions

Rate of Reaction

Gaseous Chemical Equilibrium

Acids and Bases

Equilibria in Acid-Base Solutions

Complex Ion and Precipitation Equilibria

Spontaneity of Reaction

Electrochemistry

Nuclear Reactions

Complex Ions

Chemistry of the Metals

Chemistry of the Nonmetals

Organic Chemistry

Organic Polymers, natural and Synthetic

Filters

What is the correct name for K₃PO₄?

What is the correct name for PF₅?

What is the correct name for CCl₄?

What is the correct name for Al₂O₃?

Which two atoms below have the same number of neutrons? ${ }_{8}^{15} \mathrm{O}$ , ${ }_{8}^{16} \mathrm{O}$ , ${ }_{9}^{20} \mathrm{F}$ , ${ }_{20}^{20} \mathrm{Ne}$ , ${ }_{11}^{22} \mathrm{Na}$

Two isotopes of a given element will have the same number of ,but a different number of in their nucleus.