Question 1

An isotope of which of the following elements is chosen as a standard in measuring atomic mass?

Accepted Answer

A)  carbon 
B)  oxygen 
C)  hydrogen 
D)  neon 
E)  helium 
A)  carbon 
B)  oxygen 
C)  hydrogen 
D)  neon 
E)  helium A

Question 2

The compound, P4S10, is used in the manufacture of safety matches. What is its name?

Accepted Answer

A)  phosphorus sulfide 
B)  phosphoric sulfide 
C)  phosphorus decasulfide 
D)  tetraphosphorus decasulfide 
E)  phosphorus sulfide. 
A)  phosphorus sulfide 
B)  phosphoric sulfide 
C)  phosphorus decasulfide 
D)  tetraphosphorus decasulfide 
E)  phosphorus sulfide. D

Question 3

Which one of the following is a polyatomic cation?

Accepted Answer

A)  nitrate 
B)  chromate 
C)  permanganate 
D)  hydronium 
E)  potassium 
A)  nitrate 
B)  chromate 
C)  permanganate 
D)  hydronium 
E)  potassium D

Question 4

What is the name of Na2O?

Accepted Answer

A)  disodium monoxide 
B)  sodium monoxide 
C)  sodium dioxide 
D)  sodium(I) oxide 
E)  sodium oxide 
A)  disodium monoxide 
B)  sodium monoxide 
C)  sodium dioxide 
D)  sodium(I) oxide 
E)  sodium oxide

Question 5

Which one of the following statements about atoms and subatomic particles is correct?

Accepted Answer

A)  Rutherford discovered the atomic nucleus by bombarding gold foil with electrons. 
B)  The proton and the neutron have identical masses. 
C)  The neutron's mass is equal to that of a proton plus an electron. 
D)  A neutral atom contains equal numbers of protons and electrons. 
E)  An atomic nucleus contains equal numbers of protons and neutrons. 
A)  Rutherford discovered the atomic nucleus by bombarding gold foil with electrons. 
B)  The proton and the neutron have identical masses. 
C)  The neutron's mass is equal to that of a proton plus an electron. 
D)  A neutral atom contains equal numbers of protons and electrons. 
E)  An atomic nucleus contains equal numbers of protons and neutrons.

Question 6

A row of the periodic table is called a

Accepted Answer

A)  group. 
B)  period. 
C)  isotopic mixture. 
D)  family. 
E)  subshell. 
A)  group. 
B)  period. 
C)  isotopic mixture. 
D)  family. 
E)  subshell.

Question 7

Which of the following is a metal?

Accepted Answer

A)  nitrogen, N, Z = 7 
B)  phosphorus, P, Z = 15 
C)  arsenic, Z = 33 
D)  thallium, Tl, Z = 81 
E)  silicon, Si, Z = 14 
A)  nitrogen, N, Z = 7 
B)  phosphorus, P, Z = 15 
C)  arsenic, Z = 33 
D)  thallium, Tl, Z = 81 
E)  silicon, Si, Z = 14

Question 8

Bromine has two naturally-occurring isotopes. 79Br has a mass of 78.9 amu and accounts for 50.3% of bromine atoms. If the atomic mass of bromine is 79.9 amu, what is the mass of an atom of the second bromine isotope?

Accepted Answer

A)  77.9 amu 
B)  80.0 amu 
C)  80.1 amu 
D)  80.9 amu 
E)  88.9 amu 
A)  77.9 amu 
B)  80.0 amu 
C)  80.1 amu 
D)  80.9 amu 
E)  88.9 amu

Question 9

A) Give the names of the following ions: (i) NH4+ and (ii) SO32-
b. Write down the formulas of the following ions: (i) aluminum and (ii) carbonate

Accepted Answer

a. (i) ammonium and

Question 10

The name for HF(g) is

Accepted Answer

A)  hydrofluoric acid. 
B)  hydrogen(I) fluoride. 
C)  hydrogen fluoride. 
D)  hydrogen fluorine. 
E)  fluoric acid. 
A)  hydrofluoric acid. 
B)  hydrogen(I) fluoride. 
C)  hydrogen fluoride. 
D)  hydrogen fluorine. 
E)  fluoric acid.

Question 11

Fill in the blank spaces and write out all the symbols in the left hand column in full, in the form   (i.e., include the appropriate values of Z and A as well as the correct symbol X).

Accepted Answer

The answer of Fill in the blank spaces and write...

Question 12

Which of the following is a non-metal?

Accepted Answer

A)  lithium, Li, Z = 3 
B)  bromine, Br, Z = 35 
C)  mercury, Hg, Z = 80 
D)  bismuth, Bi, Z = 83 
E)  sodium, Na, Z = 11 
A)  lithium, Li, Z = 3 
B)  bromine, Br, Z = 35 
C)  mercury, Hg, Z = 80 
D)  bismuth, Bi, Z = 83 
E)  sodium, Na, Z = 11

Question 13

Sodium oxide combines violently with water. Which of the following gives the formula and the bonding for sodium oxide?

Accepted Answer

A)  NaO, ionic compound 
B)  NaO, covalent compound 
C)  Na2O, ionic compound 
D)  Na2O, covalent compound 
E)  Na2O2, ionic compound 
A)  NaO, ionic compound 
B)  NaO, covalent compound 
C)  Na2O, ionic compound 
D)  Na2O, covalent compound 
E)  Na2O2, ionic compound

Question 14

When an alkali metal combines with a non-metal, a covalent bond is normally formed.

Accepted Answer

A) True 
 B)False

Question 15

J. J. Thomson studied cathode ray particles (electrons) and was able to measure the mass/charge ratio. His results showed that

Accepted Answer

A)  the mass/charge ratio varied with as the cathode material was changed. 
B)  the charge was always a whole-number multiple of some minimum charge. 
C)  matter included particles much smaller than the atom. 
D)  atoms contained dense areas of positive charge. 
E)  atoms are largely empty space. 
A)  the mass/charge ratio varied with as the cathode material was changed. 
B)  the charge was always a whole-number multiple of some minimum charge. 
C)  matter included particles much smaller than the atom. 
D)  atoms contained dense areas of positive charge. 
E)  atoms are largely empty space.

Question 16

Which of the following compounds is covalent?

Accepted Answer

A)  CaCl2 
B)  MgO 
C)  Al2O3 
D)  Cs2S 
E)  PCl3 
A)  CaCl2 
B)  MgO 
C)  Al2O3 
D)  Cs2S 
E)  PCl3

Question 17

Barium sulfate is used in manufacturing photographic paper. What is its formula?

Accepted Answer

A)  BaSO4 
B)  Ba(SO4)2 
C)  Ba2SO4 
D)  Ba2(SO4)3 
E)  BaSO3 
A)  BaSO4 
B)  Ba(SO4)2 
C)  Ba2SO4 
D)  Ba2(SO4)3 
E)  BaSO3

Question 18

Silver chloride is used in photographic emulsions. What is its formula?

Accepted Answer

A)  Ag2Cl3 
B)  Ag2Cl 
C)  AgCl3 
D)  AgCl2 
E)  AgCl 
A)  Ag2Cl3 
B)  Ag2Cl 
C)  AgCl3 
D)  AgCl2 
E)  AgCl

Question 19

Which of the following ions occurs commonly?

Accepted Answer

A)  N3+ 
B)  S6+ 
C)  O2- 
D)  Ca+ 
E)  Cl+ 
A)  N3+ 
B)  S6+ 
C)  O2- 
D)  Ca+ 
E)  Cl+

Question 20

A red glaze on porcelain can be produced by using MnSO4. What is its name?

Accepted Answer

A)  manganese disulfate 
B)  manganese(II) sulfate 
C)  manganese(IV) sulfate 
D)  manganese sulfate 
E)  manganese(I) sulfate 
A)  manganese disulfate 
B)  manganese(II) sulfate 
C)  manganese(IV) sulfate 
D)  manganese sulfate 
E)  manganese(I) sulfate

Exam 2: The Components of Matter

An isotope of which of the following elements is chosen as a standard in measuring atomic mass?

The compound, P4S10, is used in the manufacture of safety matches. What is its name?

Which one of the following is a polyatomic cation?

What is the name of Na2O?

Which one of the following statements about atoms and subatomic particles is correct?

A row of the periodic table is called a

Which of the following is a metal?

Bromine has two naturally-occurring isotopes. 79Br has a mass of 78.9 amu and accounts for 50.3% of bromine atoms. If the atomic mass of bromine is 79.9 amu, what is the mass of an atom of the second bromine isotope?

A) Give the names of the following ions: (i) NH4+ and (ii) SO32- b. Write down the formulas of the following ions: (i) aluminum and (ii) carbonate

The name for HF(g) is

Fill in the blank spaces and write out all the symbols in the left hand column in full, in the form (i.e., include the appropriate values of Z and A as well as the correct symbol X).

Which of the following is a non-metal?

Sodium oxide combines violently with water. Which of the following gives the formula and the bonding for sodium oxide?

When an alkali metal combines with a non-metal, a covalent bond is normally formed.

J. J. Thomson studied cathode ray particles (electrons) and was able to measure the mass/charge ratio. His results showed that

Which of the following compounds is covalent?

Barium sulfate is used in manufacturing photographic paper. What is its formula?

Silver chloride is used in photographic emulsions. What is its formula?

Which of the following ions occurs commonly?

A red glaze on porcelain can be produced by using MnSO4. What is its name?

Keys to the Study of Chemistry

Stoichiometry of Formulas and Equations

Three Major Classes of Chemical Reactions

Gases and the Kinetic-Molecular Theory

Thermochemistry: Energy Flow and Chemical Change

Quantum Theory and Atomic Structure

Electron Configuration and Chemical Periodicity

Models of Chemical Bonding

The Shapes of Molecules

Theories of Covalent Bonding

Intermolecular Forces: Liquids, Solids, and Phase Changes

The Properties of Mixtures: Solutions and Colloids

Periodic Patterns in the Main-Group Elements

Organic Compounds and the Atomic Properties of Carbon

Kinetics: Rates and Mechanisms of Chemical Reactions

Equilibrium: the Extent of Chemical Reactions

Acid-Base Equilibria

Ionic Equilibria in Aqueous Systems

Thermodynamics: Entropy, Free Energy, and the Direction of Chemical Reactions

Electrochemistry: Chemical Change and Electrical Work

The Elements in Nature and Industry

The Transition Elements and Their Coordination Compounds

Nuclear Reactions and Their Applications

Filters

The compound, P₄S₁₀, is used in the manufacture of safety matches. What is its name?

What is the name of Na₂O?

Bromine has two naturally-occurring isotopes. ⁷⁹Br has a mass of 78.9 amu and accounts for 50.3% of bromine atoms. If the atomic mass of bromine is 79.9 amu, what is the mass of an atom of the second bromine isotope?

A) Give the names of the following ions: (i) NH₄⁺ and (ii) SO₃^2-b. Write down the formulas of the following ions: (i) aluminum and (ii) carbonate