Question 1

What type of compound is Mg(NO3)2

Accepted Answer

A)  Ionic 
B)  Molecular 
C)  Acid 
D)  Base 
E)  Hydrate 
A)  Ionic 
B)  Molecular 
C)  Acid 
D)  Base 
E)  Hydrate A

Question 2

An empirical formula tell us which ions are present in a compound and gives the whole-number ratio of the atoms of these elements in the compound.

Accepted Answer

A) True 
 B)False  False

Question 3

What type of compound is NaOH

Accepted Answer

A)  Binary 
B)  Molecular 
C)  Acid 
D)  Base 
E)  Hydrate 
A)  Binary 
B)  Molecular 
C)  Acid 
D)  Base 
E)  Hydrate D

Question 4

What is the correct formula for xenon hexafluoride

Accepted Answer

A)  X6F 
B)  Xe6F 
C)  XeF6 
D)  Xe6F6 
E)  XF6 
A)  X6F 
B)  Xe6F 
C)  XeF6 
D)  Xe6F6 
E)  XF6

Question 5

How many protons and electrons are present in one Br- ion

Accepted Answer

A)  35 p, 35 e 
B)  80 p, 81 e 
C)  35 p, 34 e 
D)  35 p, 36 e 
E)  80 p, 34 e 
A)  35 p, 35 e 
B)  80 p, 81 e 
C)  35 p, 34 e 
D)  35 p, 36 e 
E)  80 p, 34 e

Question 6

Isotopes are atoms of the same element that have the same atomic number but different mass numbers.

Accepted Answer

A) True 
 B)False

Question 7

What type of compound is H2SO3

Accepted Answer

A)  Ionic 
B)  Binary 
C)  Acid 
D)  Base 
E)  Hydrate 
A)  Ionic 
B)  Binary 
C)  Acid 
D)  Base 
E)  Hydrate

Question 8

Give the formula of copper(II) bromide.

Accepted Answer

A)  Cu2Br 
B)  CuBr2 
C)  Cu3Br4 
D)  Cu2B 
E)  Cu2Br4 
A)  Cu2Br 
B)  CuBr2 
C)  Cu3Br4 
D)  Cu2B 
E)  Cu2Br4

Question 9

How many hydrogen atoms are in one molecule of CH3(CH2)3CH3

Accepted Answer

A)  10 
B)  12 
C)  14 
D)  16 
E)  None of the above 
A)  10 
B)  12 
C)  14 
D)  16 
E)  None of the above

Question 10

The name for CuSO4·5H2O is

Accepted Answer

A)  copper sulfate acid. 
B)  copper sulfate pentahydrate. 
C)  copper(II) sulfate acid. 
D)  copper(II) sulfate pentahydrate. 
E)  copper(V) sulfate hydrate. 
A)  copper sulfate acid. 
B)  copper sulfate pentahydrate. 
C)  copper(II) sulfate acid. 
D)  copper(II) sulfate pentahydrate. 
E)  copper(V) sulfate hydrate.

Question 11

Give the formula for cobalt(II) chlorate dihydrate.

Accepted Answer

A)  CoCl2·2H2O 
B)  CoClO3(H2O)2 
C)  Co(ClO3)2(H2O)2 
D)  Co(ClO3)2·2H2O 
E)  Co2(ClO3)3·2H2O 
A)  CoCl2·2H2O 
B)  CoClO3(H2O)2 
C)  Co(ClO3)2(H2O)2 
D)  Co(ClO3)2·2H2O 
E)  Co2(ClO3)3·2H2O

Question 12

The correct formula for xenon difluoride is XF2.

Accepted Answer

A) True 
 B)False

Question 13

Name the compound Co(NO3)2.

Accepted Answer

A)  Cobalt (I) nitrate 
B)  Cobalt (II) nitrate 
C)  Cobalt (I) nitride 
D)  Cobalt nitrite 
E)  Cobalt (II) nitride 
A)  Cobalt (I) nitrate 
B)  Cobalt (II) nitrate 
C)  Cobalt (I) nitride 
D)  Cobalt nitrite 
E)  Cobalt (II) nitride

Question 14

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

Accepted Answer

A)  26 electrons, 26 protons, and 29 neutrons 
B)  55 electrons, 26 protons, and 29 neutrons 
C)  26 electrons, 55 protons, and 29 neutrons 
D)  26 electrons, 26 protons, and 55 neutrons 
E)  29 electrons, 26 protons, and 26 neutrons 
A)  26 electrons, 26 protons, and 29 neutrons 
B)  55 electrons, 26 protons, and 29 neutrons 
C)  26 electrons, 55 protons, and 29 neutrons 
D)  26 electrons, 26 protons, and 55 neutrons 
E)  29 electrons, 26 protons, and 26 neutrons

Question 15

Give the formula for potassium oxide.

Accepted Answer

A)  KO 
B)  KO2 
C)  K2O 
D)  K2O4 
E)  KO3 
A)  KO 
B)  KO2 
C)  K2O 
D)  K2O4 
E)  KO3

Question 16

The formula of calcium carbonate is CaCO3.

Accepted Answer

A) True 
 B)False

Question 17

What are the two different ions present in the compound Na2S

Accepted Answer

A)  Na2+, S2- 
B)  Na+, S2- 
C)  Na2+, S2- 
D)  Na+, S- 
E)  Na2+, S- 
A)  Na2+, S2- 
B)  Na+, S2- 
C)  Na2+, S2- 
D)  Na+, S- 
E)  Na2+, S-

Question 18

The proton is about 1840 times heavier than the electron.

Accepted Answer

A) True 
 B)False

Question 19

Give the formula for carbon disulfide.

Accepted Answer

A)  CsS2 
B)  C3S4 
C)  C2S 
D)  CS 
E)  CS2 
A)  CsS2 
B)  C3S4 
C)  C2S 
D)  CS 
E)  CS2

Question 20

Name the compound NO2.

Accepted Answer

A)  mononitrogen dioxygen 
B)  nitrogen dioxide 
C)  dinitrogen monoxide 
D)  nitrogen oxide 
E)  nitrite 
A)  mononitrogen dioxygen 
B)  nitrogen dioxide 
C)  dinitrogen monoxide 
D)  nitrogen oxide 
E)  nitrite

Exam 2: Atoms Molecules and Ions

What type of compound is Mg(NO3)2

An empirical formula tell us which ions are present in a compound and gives the whole-number ratio of the atoms of these elements in the compound.

What type of compound is NaOH

What is the correct formula for xenon hexafluoride

How many protons and electrons are present in one Br- ion

Isotopes are atoms of the same element that have the same atomic number but different mass numbers.

What type of compound is H2SO3

Give the formula of copper(II) bromide.

How many hydrogen atoms are in one molecule of CH3(CH2)3CH3

The name for CuSO4·5H2O is

Give the formula for cobalt(II) chlorate dihydrate.

The correct formula for xenon difluoride is XF2.

Name the compound Co(NO3)2.

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

Give the formula for potassium oxide.

The formula of calcium carbonate is CaCO3.

What are the two different ions present in the compound Na2S

The proton is about 1840 times heavier than the electron.

Give the formula for carbon disulfide.

Name the compound NO2.

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

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 Metals Chemistry and Coordination Compounds

Organic Chemistry

Synthetic and Natural Organic Polymers

Filters

What type of compound is Mg(NO₃)₂

How many protons and electrons are present in one Br^- ion

What type of compound is H₂SO₃

How many hydrogen atoms are in one molecule of CH₃(CH₂)₃CH₃

The name for CuSO₄·5H₂O is

The correct formula for xenon difluoride is XF₂.

Name the compound Co(NO₃)₂.

The formula of calcium carbonate is CaCO₃.

What are the two different ions present in the compound Na₂S

Name the compound NO₂.