Question 1

Determine the number of protons, neutrons, and electrons in the following:

Accepted Answer

A) p+ = 12 n° = 25 e- = 12 
B) p+ = 12 n° = 12 e- = 13 
C) p+ = 12 n° = 13 e- = 12 
D) p+ = 25 n° = 12 e- = 13 
E) p+ = 12 n° = 13 e- = 25 
A) p+ = 12 n° = 25 e- = 12 
B) p+ = 12 n° = 12 e- = 13 
C) p+ = 12 n° = 13 e- = 12 
D) p+ = 25 n° = 12 e- = 13 
E) p+ = 12 n° = 13 e- = 25

Question 2

Determine the number of protons, neutrons, and electrons in the following:

Accepted Answer

A) p+ = 18 n° = 18 e- = 22 
B) p+ = 18 n° = 22 e- = 18 
C) p+ = 22 n° = 18 e- = 18 
D) p+ = 18 n° = 22 e- = 40 
E) p+ = 40 n° = 22 e- = 18 
A) p+ = 18 n° = 18 e- = 22 
B) p+ = 18 n° = 22 e- = 18 
C) p+ = 22 n° = 18 e- = 18 
D) p+ = 18 n° = 22 e- = 40 
E) p+ = 40 n° = 22 e- = 18

Question 3

What is the identity of element Q if the ion Q2+ contains 10 electrons?

Accepted Answer

A) C 
B) O 
C) Ne 
D) Mg 
A) C 
B) O 
C) Ne 
D) Mg

Question 4

What mass (in g)does 3.99 moles of Kr have?

Accepted Answer

A) 334 g 
B) 476 g 
C) 211 g 
D) 240 g 
E) 144 g 
A) 334 g 
B) 476 g 
C) 211 g 
D) 240 g 
E) 144 g

Question 5

Match the following.

-silicon

Accepted Answer

A) Si 
B) Fe 
C) Mg 
D) C 
E) K 
A) Si 
B) Fe 
C) Mg 
D) C 
E) K

Question 6

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 7

What is the mass, in grams, of one mole of carbon?

Accepted Answer

A) 12.0107 × 1023 g 
B) 1.99 × 10-23 g 
C) 1.000 g 
D) 5.01 × 1022 g 
E) 12.0107 g 
A) 12.0107 × 1023 g 
B) 1.99 × 10-23 g 
C) 1.000 g 
D) 5.01 × 1022 g 
E) 12.0107 g

Determine the number of protons, neutrons, and electrons in the following:

Determine the number of protons, neutrons, and electrons in the following:

What is the identity of element Q if the ion Q²⁺ contains 10 electrons?

What mass (in g)does 3.99 moles of Kr have?

Match the following. -silicon

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

What is the mass, in grams, of one mole of carbon?

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 Metallury

Transition Metals and Coordination Compounds

Filters

Exam 2: Atoms and Elements

Determine the number of protons, neutrons, and electrons in the following:

Determine the number of protons, neutrons, and electrons in the following:

What is the identity of element Q if the ion Q2+ contains 10 electrons?

What mass (in g)does 3.99 moles of Kr have?

Match the following. -silicon

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

What is the mass, in grams, of one mole of carbon?

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 Metallury

Transition Metals and Coordination Compounds

Filters

What is the identity of element Q if the ion Q²⁺ contains 10 electrons?

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