Question 1

Give the name for KMnO4.

Accepted Answer

A)  potassium manganese tetraoxide 
B)  potassium manganate 
C)  potassium permanganate 
D)  potassium permagnesium 
E)  potassium magnesate 
A)  potassium manganese tetraoxide 
B)  potassium manganate 
C)  potassium permanganate 
D)  potassium permagnesium 
E)  potassium magnesate

Question 2

Methane and oxygen react to form carbon dioxide and water.What mass of water is formed if 9.6 g of methane reacts with 38.4 g of oxygen to produce 26.4 g of carbon dioxide?

Accepted Answer

A)  21.6 g 
B)  26.4 g 
C)  44.4 g 
D)  48.0 g 
A)  21.6 g 
B)  26.4 g 
C)  44.4 g 
D)  48.0 g

Question 3

Identify a hydrocarbon.

Accepted Answer

A)  CH3CH2SCH2CH3 
B)  CH3CH2OH 
C)  CH3CH2NH2 
D)  CH3CH2CH2CH3 
E)  CH3COOCH3 
A)  CH3CH2SCH2CH3 
B)  CH3CH2OH 
C)  CH3CH2NH2 
D)  CH3CH2CH2CH3 
E)  CH3COOCH3

Question 4

Which of the following is an ionic compound?

Accepted Answer

A)  NaCl 
B)  NO2 
C)  PCl3 
D)  CCl4 
E)  SeBr2 
A)  NaCl 
B)  NO2 
C)  PCl3 
D)  CCl4 
E)  SeBr2

Question 5

What is the charge on the Co ions in Co2O3?

Accepted Answer

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

Question 6

An ionic bond is best described as

Accepted Answer

A)  the sharing of electrons. 
B)  the transfer of electrons from one atom to another. 
C)  the attraction that holds the atoms together in a polyatomic ion. 
D)  the attraction between two nonmetal atoms. 
E)  the attraction between two metal atoms. 
A)  the sharing of electrons. 
B)  the transfer of electrons from one atom to another. 
C)  the attraction that holds the atoms together in a polyatomic ion. 
D)  the attraction between two nonmetal atoms. 
E)  the attraction between two metal atoms.

Question 7

Identify the FALSE statement about acid rain.

Accepted Answer

A)  Acid rain contains nitric acid and sulfuric acid. 
B)  Acid rain dissolves marble statues. 
C)  Acid rain comes from coal-powered electric power plants. 
D)  Acid rain corrodes steel bridges. 
E)  Acid rain comes from hydroelectric power plants. 
A)  Acid rain contains nitric acid and sulfuric acid. 
B)  Acid rain dissolves marble statues. 
C)  Acid rain comes from coal-powered electric power plants. 
D)  Acid rain corrodes steel bridges. 
E)  Acid rain comes from hydroelectric power plants.

Question 8

Identify the element whose ion only exists as 1+.

Accepted Answer

A)  barium 
B)  lithium 
C)  lead 
D)  nitrogen 
E)  radon 
A)  barium 
B)  lithium 
C)  lead 
D)  nitrogen 
E)  radon

Question 9

What is the stoichiometric coefficient for oxygen when the following equation is balanced using the lowest,whole-number coefficients? _____ C H4O (l)+ _____ O2(g)→ _____ CO2(g)+ _____ H2O(l)

Accepted Answer

A)  9 
B)  7 
C)  5 
D)  3 
A)  9 
B)  7 
C)  5 
D)  3

Question 10

Which one of the following compounds contains ionic bonds?

Accepted Answer

A)  RaO 
B)  HBr 
C)  PCl3 
D)  CO2 
E)  CCl4 
A)  RaO 
B)  HBr 
C)  PCl3 
D)  CO2 
E)  CCl4

Question 11

In which set do all elements tend to form anions in binary ionic compounds?

Accepted Answer

A)  K, Ga, Pb 
B)  Ca, Fe, Hg 
C)  Li, As, K 
D)  N, S, I 
A)  K, Ga, Pb 
B)  Ca, Fe, Hg 
C)  Li, As, K 
D)  N, S, I

Question 12

Identify the alcohol in fermented drinks.

Accepted Answer

A)  CH3CH2CH2OH 
B)  CH3CH2OH 
C)  CH3OH 
D)  (CH3)2CHOH 
E)  HOCH2CH2OH 
A)  CH3CH2CH2OH 
B)  CH3CH2OH 
C)  CH3OH 
D)  (CH3)2CHOH 
E)  HOCH2CH2OH

Question 13

The chemical formula for iodous acid is

Accepted Answer

A)  HIO(aq). 
B)  HIO2(aq). 
C)  HIO3(aq). 
D)  HIO4(aq). 
A)  HIO(aq). 
B)  HIO2(aq). 
C)  HIO3(aq). 
D)  HIO4(aq).

Question 14

Which of the following has the smallest mass?

Accepted Answer

A)  3.50 × 1024 molecules of I2 
B)  255. g of Cl2 
C)  10.0 mol of F2 
D)  0.020 kg of Br2 
E)  5.50 × 1024 atoms of I2 
A)  3.50 × 1024 molecules of I2 
B)  255. g of Cl2 
C)  10.0 mol of F2 
D)  0.020 kg of Br2 
E)  5.50 × 1024 atoms of I2

Question 15

The ion ClO2- is named

Accepted Answer

A)  chlorate ion. 
B)  chlorite ion. 
C)  chlorine dioxide ion. 
D)  chlorine(II) oxide ion. 
A)  chlorate ion. 
B)  chlorite ion. 
C)  chlorine dioxide ion. 
D)  chlorine(II) oxide ion.

Question 16

Identify the element that chlorine forms a covalent bond with.

Accepted Answer

A)  carbon 
B)  sodium 
C)  barium 
D)  copper 
E)  nickel 
A)  carbon 
B)  sodium 
C)  barium 
D)  copper 
E)  nickel

Question 17

Give the name for CoClS1U1B12S1U1B0.6HS1U1B12S1U1B0O.Remember that Co forms several ions.

Accepted Answer

A)  cobalt chloride hydrate 
B)  cobalt(I) chloride heptahydrate 
C)  cobalt(II) chloride heptahydrate 
D)  cobalt(II) chloride hexahydrate 
E)  cobalt(I) chloride 
A)  cobalt chloride hydrate 
B)  cobalt(I) chloride heptahydrate 
C)  cobalt(II) chloride heptahydrate 
D)  cobalt(II) chloride hexahydrate 
E)  cobalt(I) chloride

Question 18

How many atoms of oxygen are contained in 47.6 g of Al2(CO3)3? The molar mass of Al2(CO3)3 is 233.99 g/mol.

Accepted Answer

A)  1.23 × 1023 O atoms 
B)  2.96 × 1024 O atoms 
C)  2.87 × 1025 O atoms 
D)  1.10 × 1024 O atoms 
E)  3.68 × 1023 O atoms 
A)  1.23 × 1023 O atoms 
B)  2.96 × 1024 O atoms 
C)  2.87 × 1025 O atoms 
D)  1.10 × 1024 O atoms 
E)  3.68 × 1023 O atoms

Question 19

A certain alcohol contains only three elements,carbon,hydrogen,and oxygen.Combustion of a 20.00 gram sample of the alcohol produced 38.20 grams of CO2 and 23.48 grams of H2O.What is the empirical formula of the alcohol?

Accepted Answer

A)  C2H6O 
B)  C3H6O 
C)  C4H10O 
D)  CH4O 
E)  C5H10O 
A)  C2H6O 
B)  C3H6O 
C)  C4H10O 
D)  CH4O 
E)  C5H10O

Question 20

Determine the empirical formula for a compound that is 36.86% N and 63.14% O by mass.

Accepted Answer

A)  NO 
B)  N2O 
C)  NO2 
D)  N2O3 
E)  NO3 
A)  NO 
B)  N2O 
C)  NO2 
D)  N2O3 
E)  NO3

Exam 3: Molecules,compounds,and Chemical Equations

Give the name for KMnO4.

Methane and oxygen react to form carbon dioxide and water.What mass of water is formed if 9.6 g of methane reacts with 38.4 g of oxygen to produce 26.4 g of carbon dioxide?

Identify a hydrocarbon.

Which of the following is an ionic compound?

What is the charge on the Co ions in Co2O3?

An ionic bond is best described as

Identify the FALSE statement about acid rain.

Identify the element whose ion only exists as 1+.

What is the stoichiometric coefficient for oxygen when the following equation is balanced using the lowest,whole-number coefficients? _____ C H4O (l)+ _____ O2(g)→ _____ CO2(g)+ _____ H2O(l)

Which one of the following compounds contains ionic bonds?

In which set do all elements tend to form anions in binary ionic compounds?

Identify the alcohol in fermented drinks.

The chemical formula for iodous acid is

Which of the following has the smallest mass?

The ion ClO2- is named

Identify the element that chlorine forms a covalent bond with.

Give the name for CoCl2.6H2O.Remember that Co forms several ions.

How many atoms of oxygen are contained in 47.6 g of Al2(CO3)3? The molar mass of Al2(CO3)3 is 233.99 g/mol.

A certain alcohol contains only three elements,carbon,hydrogen,and oxygen.Combustion of a 20.00 gram sample of the alcohol produced 38.20 grams of CO2 and 23.48 grams of H2O.What is the empirical formula of the alcohol?

Determine the empirical formula for a compound that is 36.86% N and 63.14% O by mass.

Matter, measurement, and Problem Solving

Atoms and Elements

Chemical Quantities and Aqueous Reactions

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,

Liquids,solids,and Intermolecular Forces

Solids and Modern Materials

Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Aqueous Ionic Equilibrium

Free Energy and Thermodynamics

Electrochemistry

Radioactivity and Nuclear Chemistry

Organic Chemistry

Biochemistry

Chemistry of the Nonmetals

Metals and Metallurgy

Transition Metals and Coordination Compounds

Filters

Give the name for KMnO₄.

What is the charge on the Co ions in Co₂O₃?

What is the stoichiometric coefficient for oxygen when the following equation is balanced using the lowest,whole-number coefficients? ___ CH₄O(l)+ _ O₂(g)→ _ CO₂(g)+ ___ H₂O(l)

The ion ClO₂^- is named

Give the name for CoCl₂.6H₂O.Remember that Co forms several ions.

How many atoms of oxygen are contained in 47.6 g of Al₂(CO₃)₃? The molar mass of Al₂(CO₃)₃is 233.99 g/mol.

A certain alcohol contains only three elements,carbon,hydrogen,and oxygen.Combustion of a 20.00 gram sample of the alcohol produced 38.20 grams of CO₂ and 23.48 grams of H₂O.What is the empirical formula of the alcohol?