Question 1

Predict the charge that an aluminum ion would have.

Accepted Answer

A)  5- 
B)  1+ 
C)  1- 
D)  2+ 
E)  3+ 
A)  5- 
B)  1+ 
C)  1- 
D)  2+ 
E)  3+

Question 2

What is the chemical symbol for mercury?

Accepted Answer

A)  Ag 
B)  Au 
C)  Hg 
D)  Pb 
A)  Ag 
B)  Au 
C)  Hg 
D)  Pb

Question 3

In a chemical reaction, matter is neither created nor destroyed. Which law does this refer to?

Accepted Answer

A)  Law of definite proportions 
B)  Law of the conservation of mass 
C)  Law of modern atomic theory 
D)  Law of multiple proportions 
E)  First law of thermodynamics 
A)  Law of definite proportions 
B)  Law of the conservation of mass 
C)  Law of modern atomic theory 
D)  Law of multiple proportions 
E)  First law of thermodynamics

Question 4

Calculate the mass (in ng) of 2.33 × 1020 atoms of oxygen.

Accepted Answer

A)  6.19 × 106 ng 
B)  1.62 × 107 ng 
C)  2.25 × 103 ng 
D)  3.73 × 106 ng 
E)  4.69 × 107 ng 
A)  6.19 × 106 ng 
B)  1.62 × 107 ng 
C)  2.25 × 103 ng 
D)  3.73 × 106 ng 
E)  4.69 × 107 ng

Question 5

What species is represented by the following information? p+ = 12 n° = 14 e- = 10

Accepted Answer

A)  Si4+ 
B)  Mg 
C)  Ne 
D)  Si 
E)  Mg2+ 
A)  Si4+ 
B)  Mg 
C)  Ne 
D)  Si 
E)  Mg2+

Question 6

What is the chemical symbol for titanium?

Accepted Answer

A)  Th 
B)  Ti 
C)  Tl 
D)  Tm 
A)  Th 
B)  Ti 
C)  Tl 
D)  Tm

Question 7

Give an example of a halogen.

Accepted Answer

The answer of Give an example of a halogen....

Question 8

Identify the number of protons in P-3.

Accepted Answer

A)  18 
B)  12 
C)  19 
D)  15 
E)  16 
A)  18 
B)  12 
C)  19 
D)  15 
E)  16

Question 9

Describe the difference between ions and isotopes.

Accepted Answer

Ions are obtained by the loss

Question 10

How many moles are in 2.16 × 1024 atoms of lead?

Accepted Answer

A)  35.9 moles 
B)  3.59 moles 
C)  0.359 moles 
D)  6.08 moles 
E)  1.79 moles 
A)  35.9 moles 
B)  3.59 moles 
C)  0.359 moles 
D)  6.08 moles 
E)  1.79 moles

Question 11

Which of the following elements is a metalloid?

Accepted Answer

A)  Al 
B)  Ge 
C)  C 
D)  Sn 
E)  Gd 
A)  Al 
B)  Ge 
C)  C 
D)  Sn 
E)  Gd

Question 12

How many moles of fructose are in a sample containing 1.43 × 1024 molecules of fructose?

Accepted Answer

A)  1.16 × 10-48 mol 
B)  0.420 mol 
C)  8.61 × 1047 mol 
D)  2.37 mol 
E)  2.38 × 10-1 mol 
A)  1.16 × 10-48 mol 
B)  0.420 mol 
C)  8.61 × 1047 mol 
D)  2.37 mol 
E)  2.38 × 10-1 mol

Question 13

What does "X" represent in the following symbol?   X

Accepted Answer

A)  tin 
B)  copper 
C)  palladium 
D)  niobium 
E)  uranium 
A)  tin 
B)  copper 
C)  palladium 
D)  niobium 
E)  uranium

Question 14

Predict the charge that an ion formed from sulfur would have.

Accepted Answer

A)  1- 
B)  6+ 
C)  3- 
D)  4+ 
E)  2- 
A)  1- 
B)  6+ 
C)  3- 
D)  4+ 
E)  2-

Question 15

Calculate the atomic mass of silver if silver has two naturally occurring isotopes with the following masses and natural abundances: 
Ag-107 106.90509 u 51.84%
Ag-109 108.90476 u 48.46%

Accepted Answer

A)  107.90 u 
B)  108.00 u 
C)  107.79 u 
D)  108.32 u 
E)  108.19 u 
A)  107.90 u 
B)  108.00 u 
C)  107.79 u 
D)  108.32 u 
E)  108.19 u

Question 16

Identify the symbol for silver.

Accepted Answer

A)  S 
B)  Si 
C)  Ar 
D)  Ag 
E)  Sl 
A)  S 
B)  Si 
C)  Ar 
D)  Ag 
E)  Sl

Question 17

How many argon atoms are contained in 7.66 × 105 mmol of argon?

Accepted Answer

A)  4.61 × 1026 Ar atoms 
B)  1.84 × 1028 Ar atoms 
C)  1.15 × 1028 Ar atoms 
D)  7.86 × 1020 Ar atoms 
E)  3.24 × 1026 Ar atoms 
A)  4.61 × 1026 Ar atoms 
B)  1.84 × 1028 Ar atoms 
C)  1.15 × 1028 Ar atoms 
D)  7.86 × 1020 Ar atoms 
E)  3.24 × 1026 Ar atoms

Question 18

Which of the following elements is an alkaline earth metal?

Accepted Answer

A)  Cs 
B)  Cu 
C)  Mg 
D)  Ti 
E)  Br 
A)  Cs 
B)  Cu 
C)  Mg 
D)  Ti 
E)  Br

Question 19

What element is defined by the following information? p+ = 20 n° = 20 e- = 20

Accepted Answer

A)  zirconium 
B)  calcium 
C)  potassium 
D)  neon 
E)  argon 
A)  zirconium 
B)  calcium 
C)  potassium 
D)  neon 
E)  argon

Question 20

When forming an ion, beryllium, Be, will ________ electron(s).

Accepted Answer

A)  gain one 
B)  gain two 
C)  gain three 
D)  lose one 
E)  lose two 
A)  gain one 
B)  gain two 
C)  gain three 
D)  lose one 
E)  lose two

Exam 2: Atoms and Elements

Predict the charge that an aluminum ion would have.

What is the chemical symbol for mercury?

In a chemical reaction, matter is neither created nor destroyed. Which law does this refer to?

Calculate the mass (in ng) of 2.33 × 1020 atoms of oxygen.

What species is represented by the following information? p+ = 12 n° = 14 e- = 10

What is the chemical symbol for titanium?

Give an example of a halogen.

Identify the number of protons in P-3.

Describe the difference between ions and isotopes.

How many moles are in 2.16 × 1024 atoms of lead?

Which of the following elements is a metalloid?

How many moles of fructose are in a sample containing 1.43 × 1024 molecules of fructose?

What does "X" represent in the following symbol? X

Predict the charge that an ion formed from sulfur would have.

Calculate the atomic mass of silver if silver has two naturally occurring isotopes with the following masses and natural abundances: Ag-107 106.90509 u 51.84% Ag-109 108.90476 u 48.46%

Identify the symbol for silver.

How many argon atoms are contained in 7.66 × 105 mmol of argon?

Which of the following elements is an alkaline earth metal?

What element is defined by the following information? p+ = 20 n° = 20 e- = 20

When forming an ion, beryllium, Be, will ________ electron(s).

Units of Measurement for Physical and Chemical Change

Molecules, Compounds, and Nomenclature

Chemical Reactions and Stoichiometry

Gases

Thermochemistry

The Quantum-Mechanical Model of the Atom

Periodic Properties of the Elements

Chemical Bonding I: Lewis Theory

Chemical Bonding Ii: Molecular Shapes, Valence Bond Theory, and Molecular Orbital Theory

Liquids, Solids, and Intermolecular Forces

Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Aqueous Ionic Equilibrium

Gibbs Energy and Thermodynamics

Electrochemistry

Radioactivity and Nuclear Chemistry

Organic Chemistry I: Structures

Organic Chemistry Ii: Reactions

Biochemistry

Chemistry of the Nonmetals

Metals and Metallurgy

Transition Metals and Coordination Compounds

Filters

Calculate the mass (in ng) of 2.33 × 10²⁰atoms of oxygen.

What species is represented by the following information? p⁺ = 12 n° = 14 e^- = 10

Identify the number of protons in P^-3.

How many moles are in 2.16 × 10²⁴ atoms of lead?

How many moles of fructose are in a sample containing 1.43 × 10²⁴molecules of fructose?

How many argon atoms are contained in 7.66 × 10⁵ mmol of argon?

What element is defined by the following information? p⁺ = 20 n° = 20 e^- = 20