Question 1

Select acidic oxide from the choices given.

Accepted Answer

A)  CaO
B)  Na2O
C)  Na2O2
D)  P4O6
E)  KOHF) A) and D)
G) C) and D)

Question 2

Determine all of the ionic hydrides from the compounds listed below. I.CaH2 II.H2S III.SiH4

Accepted Answer

A)  I only
B)  II only
C)  I and II
D)  I and III
E)  II and IIIF) B) and C)
G) A) and E) A

Question 3

Hydrogen plays an important role in many industrial processes.Write a balanced chemical equation for its production by the reaction of propane (C3H8, obtained from natural gas)and steam.

Accepted Answer

C₃H₈(g)+ 3H₂O...

Question 4

Which of the following substances is a superoxide?

Accepted Answer

A)  KO2
B)  Na2O2
C)  CO2
D)  CaO
E)  Al2O3F) B) and E)
G) A) and B)

Question 5

Write the chemical formula of the peroxide ion.

Accepted Answer

The answer of Write the chemical formula of the peroxide...

Question 6

Which of these aqueous solutions has the lowest pH?

Accepted Answer

A)  0.100 M NaOH
B)  0.100 M Na2O
C)  0.100 M Na3N
D)  all of these solutions have the same pH due to the leveling effect
E)  these all are solutions of weak bases, so Kb values are needed in order to decideF) A) and B)
G) A) and C) A

Question 7

Which one of these elements is a liquid at room temperature?

Accepted Answer

A)  bromine
B)  chlorine
C)  fluorine
D)  iodine
E)  seleniumF) A) and C)
G) C) and D)

Question 8

The bond energy of F2 is unusually low, in comparison with the other halogens, due to the small size of the fluorine atom.Which of the following periodic properties is also unusually low in the case of fluorine?

Accepted Answer

A)  first ionization energy
B)  electron affinity
C)  electronegativity
D)  diatomic bond length
E)  ionic radiusF) A) and B)
G) A) and C)

Question 9

Alkali metal hydrides are very reactive with water, forming H2 gas.

Accepted Answer

A) True 
 B)False

Question 10

What element is the most abundant by mass in Earth's crust?

Accepted Answer

A)  Fe
B)  H
C)  K
D)  P
E)  OF) C) and E)
G) A) and E)

Question 11

Phosphoric acid is the most important of the phosphorus oxoacids.Industrially, phosphoric acid is prepared by

Accepted Answer

A)  the Ostwald process.
B)  the Haber process.
C)  the reaction of phosphate rock with sulfuric acid.
D)  the reaction of P4O10 with water.
E)  the Frasch process.F) B) and C)
G) C) and D)

Question 12

Write an equation for a laboratory preparation of nitrogen gas.

Accepted Answer

NH₄NO₂(s)$\rarr$ 2H₂O(g)+ N₂(g)

Question 13

When liquid phosphorus trichloride reacts with water, the products are

Accepted Answer

A)  PCl5 and H3PO4.
B)  H3PO3 and Cl2.
C)  H3PO4 and HCl.
D)  H3PO4 and Cl2.
E)  H3PO3 and HCl.F) A) and E)
G) C) and E)

Question 14

Which of these substances is being considered as a replacement fuel for gasoline?

Accepted Answer

A)  D2O
B)  H2
C)  NO2
D)  F2
E)  HeF) B) and D)
G) B) and C)

Question 15

Which of the following choices is/are ionic oxides? I.SrO II.SiO2 III.SO2

Accepted Answer

A)  I only
B)  II only
C)  III only
D)  I and II
E)  II and IIIF) All of the above
G) A) and B)

Question 16

Which of the following will oxidize gold?

Accepted Answer

A)  concentrated nitric acid
B)  concentrated hydrochloric acid
C)  aqua regia, a mixture of concentrated nitric acid and concentrated hydrochloric acid
D)  all of the above can oxidize gold
E)  none of the above can oxidize gold because it is a noble metal and too low on the activity seriesF) None of the above
G) B) and E)

Question 17

The presence of ozone in the upper atmosphere is important because

Accepted Answer

A)  O3 absorbs outgoing radiation from the earth's surface, thus helping to keep the earth warm.
B)  O3 absorbs harmful solar radiation.
C)  O3 dissolves in water droplets and is very reactive.
D)  O3 is a major reactant in photosynthesis.E) A) and B)
F) None of the above

Question 18

Based on the following options, select the compound with hydrogen in the - 1 oxidation state.

Accepted Answer

A)  NaH
B)  B2H6
C)  H2SO4
D)  H2S
E)  PH3F) C) and D)
G) A) and D)

Question 19

List the following acids in order of increasing acid strength: HOCl, HClO3, HClO4

Accepted Answer

A)  HOCl 3 4
B)  HClO4 3 
C)  HClO3 4 
D)  HOCl 4 3
E)  HClO3 4F) A) and B)
G) A) and C)

Question 20

Which of the following choices is/are covalent oxides? I.SrO II.SiO2 III.SO2

Accepted Answer

A)  I only
B)  II only
C)  III only
D)  I and II
E)  II and IIIF) C) and D)
G) B) and D)

Exam 22: Nonmetallic Elements and Their Compounds

Select acidic oxide from the choices given.

Correct AnswerverifiedShow Answer

Determine all of the ionic hydrides from the compounds listed below. I.CaH2 II.H2S III.SiH4

Correct AnswerverifiedA

Hydrogen plays an important role in many industrial processes.Write a balanced chemical equation for its production by the reaction of propane (C3H8, obtained from natural gas)and steam.

Correct AnswerverifiedC3H8(g)+ 3H2O...View AnswerShow Answer

Which of the following substances is a superoxide?

Correct AnswerverifiedShow Answer

Write the chemical formula of the peroxide ion.

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Which of these aqueous solutions has the lowest pH?

Correct AnswerverifiedA

Which one of these elements is a liquid at room temperature?

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The bond energy of F2 is unusually low, in comparison with the other halogens, due to the small size of the fluorine atom.Which of the following periodic properties is also unusually low in the case of fluorine?

Correct AnswerverifiedShow Answer

Alkali metal hydrides are very reactive with water, forming H2 gas.

Correct AnswerverifiedShow Answer

What element is the most abundant by mass in Earth's crust?

Correct AnswerverifiedShow Answer

Phosphoric acid is the most important of the phosphorus oxoacids.Industrially, phosphoric acid is prepared by

Correct AnswerverifiedShow Answer

Write an equation for a laboratory preparation of nitrogen gas.

Correct AnswerverifiedNH4NO2(s)\(\rarr\) 2H2O(g)+ N2(g)

When liquid phosphorus trichloride reacts with water, the products are

Correct AnswerverifiedShow Answer

Which of these substances is being considered as a replacement fuel for gasoline?

Correct AnswerverifiedShow Answer

Which of the following choices is/are ionic oxides? I.SrO II.SiO2 III.SO2

Correct AnswerverifiedShow Answer

Which of the following will oxidize gold?

Correct AnswerverifiedShow Answer

The presence of ozone in the upper atmosphere is important because

Correct AnswerverifiedShow Answer

Based on the following options, select the compound with hydrogen in the - 1 oxidation state.

Correct AnswerverifiedShow Answer

List the following acids in order of increasing acid strength: HOCl, HClO3, HClO4

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Which of the following choices is/are covalent oxides? I.SrO II.SiO2 III.SO2

Correct AnswerverifiedShow Answer

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Determine all of the ionic hydrides from the compounds listed below. I.CaH₂II.H₂S III.SiH₄

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Hydrogen plays an important role in many industrial processes.Write a balanced chemical equation for its production by the reaction of propane (C₃H₈, obtained from natural gas)and steam.

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C₃H₈(g)+ 3H₂O...
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The bond energy of F₂ is unusually low, in comparison with the other halogens, due to the small size of the fluorine atom.Which of the following periodic properties is also unusually low in the case of fluorine?

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Alkali metal hydrides are very reactive with water, forming H₂ gas.

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NH₄NO₂(s)\(\rarr\) 2H₂O(g)+ N₂(g)

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Which of the following choices is/are ionic oxides? I.SrO II.SiO₂III.SO₂

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List the following acids in order of increasing acid strength: HOCl, HClO₃, HClO₄

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Which of the following choices is/are covalent oxides? I.SrO II.SiO₂III.SO₂

Correct Answer
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