Question 1

Give the number of protons (p), neutrons (n), and electrons (e)in one atom of 238U.

Accepted Answer

A) 146 p, 92 n, 92 e 
B) 92 p, 92 n, 92 e 
C) 92 p, 146 n, 92e 
D) 146 p, 28 n, 146 e 
E) 238 p, 146 n, 238 e 
A) 146 p, 92 n, 92 e 
B) 92 p, 92 n, 92 e 
C) 92 p, 146 n, 92e 
D) 146 p, 28 n, 146 e 
E) 238 p, 146 n, 238 e

Question 2

Write the formula of ammonia.

Accepted Answer

The answer of Write the formula of ammonia....

Question 3

The proton is about 1840 times heavier than the electron.

Accepted Answer

A) True 
 B)False

Question 4

-Use the periodic table above to show where the halogen elements are located.

Accepted Answer

Group 7A o

Question 5

Which of the following is an example of an empirical formula?

Accepted Answer

A) C9H12 
B) C9H18Cl2 
C) C6H6 
D) N2O4 
E) C2H2O2 
A) C9H12 
B) C9H18Cl2 
C) C6H6 
D) N2O4 
E) C2H2O2

Question 6

What is the formula for the ionic compound containing calcium ions and nitrate ions?

Accepted Answer

A) Ca3N2 
B) Ca(NO3)2 
C) Ca2NO3 
D) Ca2NO2 
E) CaNO3 
A) Ca3N2 
B) Ca(NO3)2 
C) Ca2NO3 
D) Ca2NO2 
E) CaNO3

Question 7

Name the following binary compound: MnCl2.

Accepted Answer

manganese(

Question 8

Give the formula for potassium oxide.

Accepted Answer

The answer of Give the formula for potassium oxide....

Question 9

Complete the following chart, in order from left to right

Accepted Answer

A) (40Zr, 21) 
B) (19K, 40) 
C) (21K, 19) 
D) (40K, 21) 
E) (38Sr, 19) 
A) (40Zr, 21) 
B) (19K, 40) 
C) (21K, 19) 
D) (40K, 21) 
E) (38Sr, 19)

Question 10

Which of the following elements is most likely to be a good conductor of electricity?

Accepted Answer

A) N 
B) S 
C) He 
D) Cl 
E) Fe 
A) N 
B) S 
C) He 
D) Cl 
E) Fe

Question 11

How many electrons, protons, and neutrons does an iron-55 atom have?

Accepted Answer

26 electro

Question 12

Name the following compound: K3PO4.

Accepted Answer

Question 13

What is the nitride ion, nitrate ion, and nitrite ion, in that order?

Accepted Answer

The answer of What is the nitride ion, nitrate ion,...

Question 14

What is ammonia and ammonium ion, in that order?

Accepted Answer

The answer of What is ammonia and ammonium ion, in...

Question 15

An oxide ion, O2-, has:

Accepted Answer

A) 8 protons and 10 electrons 
B) 10 protons and 8 electrons 
C) 8 protons and 9 electrons 
D) 8 protons and 7 electrons 
E) 10 protons and 7 electrons 
A) 8 protons and 10 electrons 
B) 10 protons and 8 electrons 
C) 8 protons and 9 electrons 
D) 8 protons and 7 electrons 
E) 10 protons and 7 electrons

Question 16

When a beam of alpha particles passes between two electrically charged plates, the beam is deflected toward the positive plate.

Accepted Answer

A) True 
 B)False

Question 17

Which one of the following elements is most likely to form a 2+ ion?

Accepted Answer

A) calcium 
B) carbon 
C) fluorine 
D) oxygen 
E) sodium 
A) calcium 
B) carbon 
C) fluorine 
D) oxygen 
E) sodium

Question 18

Name the following binary compound: FeS.

Accepted Answer

iron(II)su

Question 19

What are the two different ions present in the compound NH4NO3?

Accepted Answer

A) NH4-, NO3+ 
B) NH4+, NO3- 
C) N3-, H+, O2- 
D) NH43+, NO4- 
E) NH4+, NO3- 
A) NH4-, NO3+ 
B) NH4+, NO3- 
C) N3-, H+, O2- 
D) NH43+, NO4- 
E) NH4+, NO3-

Question 20

What is the sulfide ion, sulfate ion, and sulfite ion, in that order?

Accepted Answer

The answer of What is the sulfide ion, sulfate ion,...

Exam 2: Atoms, Molecules, and Ions

Give the number of protons (p), neutrons (n), and electrons (e)in one atom of 238U.

Write the formula of ammonia.

The proton is about 1840 times heavier than the electron.

-Use the periodic table above to show where the halogen elements are located.

Which of the following is an example of an empirical formula?

What is the formula for the ionic compound containing calcium ions and nitrate ions?

Name the following binary compound: MnCl2.

Give the formula for potassium oxide.

Complete the following chart, in order from left to right

Which of the following elements is most likely to be a good conductor of electricity?

How many electrons, protons, and neutrons does an iron-55 atom have?

Name the following compound: K3PO4.

What is the nitride ion, nitrate ion, and nitrite ion, in that order?

What is ammonia and ammonium ion, in that order?

An oxide ion, O2-, has:

When a beam of alpha particles passes between two electrically charged plates, the beam is deflected toward the positive plate.

Which one of the following elements is most likely to form a 2+ ion?

Name the following binary compound: FeS.

What are the two different ions present in the compound NH4NO3?

What is the sulfide ion, sulfate ion, and sulfite ion, in that order?

Chemistry: the Study of Change

Mass Relationships in Chemical Reactions

Reactions in Aqueous Solutions

Gases

Thermochemistry

Quantum Theory and the Electronic Structure of Atoms

Periodic Relationships Among the Elements

Chemical Bonding I: Basic Concepts

Chemical Bonding Ii: Molecular Geometry and Hybridization of Atomic Orbitals

Intermolecular Forces and Liquids and Solids

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

Chemistry in the Atmosphere

Metallurgy and the Chemistry of Metals

Nonmetallic Elements and Their Compounds

Transition Metal Chemistry and Coordination Compounds

Organic Chemistry

Synthetic and Natural Organic Polymers

Filters

Give the number of protons (p), neutrons (n), and electrons (e)in one atom of ²³⁸U.

Name the following binary compound: MnCl₂.

Name the following compound: K₃PO₄.

An oxide ion, O^2-, has:

What are the two different ions present in the compound NH₄NO₃?