Question 1

Predict the products for the following set of reactants. 
Li(s)  + H2O(l)   →\rightarrow→

Accepted Answer

A)   Li+(aq)  + H2(g)  + O2(g) 
B)   Li+(aq)  + H2(g)  + OH¯(aq) 
C)   LiH(s)  + O2(g) 
D)   Li+(aq)  + H2O2(aq) 
E)   LiOH(aq)  + H2O2(aq)  F) C) and E)
G) A) and B)

Question 2

When elements from a group exhibit more than one oxidation state,

Accepted Answer

A)   the higher oxidation state is more important as one goes down a group.
B)   the lower oxidation state is more important as one goes down a group.
C)   both oxidation states are equally important throughout the group.
D)   the oxidation state will be affected by the elements on either side of it in the period.
E)   None of these choices is correct.F) C) and D)
G) A) and B)

Question 3

Predict the products for the following set of reactants. 
K2O(s)  + H2O(l)   →\rightarrow→

Accepted Answer

A)   K+(aq)  + OH¯(aq)  + H2(g) 
B)   K+(aq)  + OH¯(aq) 
C)   K+(aq)  + H2(g)  + O2(g) 
D)   KH(s)  + O2(g) 
E)   K+(aq)  + OH¯(aq)  + H2O2(aq)  F) None of the above
G) A) and C)

Question 4

Dinitrogen monoxide, N2O, is

Accepted Answer

A)   a brown poisonous gas that is one of the chemicals involved in the production of photochemical smog.
B)   a colorless gas used in the production of nitric acid.
C)   a colorless gas used as a propellant in canned whipped cream.
D)   a colorless gas that disproportionates into nitrogen and oxygen.
E)   None of these choices is correct.F) A) and E)
G) B) and D)

Question 5

Predict the products formed from the following set of reactants. 
FeSe(s)  + HCl(aq)   →\rightarrow→

Accepted Answer

A)   Se(s)  + FeCl2(aq) 
B)   SeCl2(s)  + Fe(s)  + H2(g) 
C)   FeH2(s)  + SeCl2(l) 
D)   H2Se(g)  + Fe(s)  + Cl2(g) 
E)   H2Se(g)  + FeCl2(aq)  F) A) and B)
G) B) and E)

Question 6

Sulfur hexafluoride is a pollutant responsible for acid rain.

Accepted Answer

A) True 
 B)False

Question 7

The acidity of oxides of main group elements increases down a group, from top to bottom.

Accepted Answer

A) True 
 B)False

Question 8

Which of the following is an accurate comparison of the properties of nitrogen and oxygen?

Accepted Answer

A)   Both oxygen and nitrogen form anions easily.
B)   Oxygen is a strong oxidizing agent while nitrogen is a strong reducing agent.
C)   Nitrogen uses more oxidation states in its compounds than oxygen does.
D)   Nitrogen is more reactive than oxygen.
E)   Nitrogen does not form naturally-occurring compounds, but oxygen does.F) B) and D)
G) A) and E)

Question 9

One important feature of the chemistry of carbon is

Accepted Answer

A)   its large radius that allows other atoms to fit easily around it.
B)   its low electronegativity that allows it to ionize easily.
C)   its amphoteric behavior.
D)   its ability to form multiple bonds with hydrogen.
E)   its ability to catenate.F) B) and D)
G) C) and D)

Question 10

Carbon monoxide's toxicity is related to its ability to bond to iron in hemoglobin.

Accepted Answer

A) True 
 B)False

Question 11

Which of the following pure substances will not participate in hydrogen bonding?

Accepted Answer

A)   CH3NH2
B)   CH3CH2OCH2CH3
C)   CH3CH2OH
D)   HF
E)   H2O2F) B) and C)
G) All of the above

Question 12

Ozone is both a pollutant and a natural component of the atmosphere.

Accepted Answer

A) True 
 B)False

Question 13

In which of the following ways is lithium different from the other alkali metals?

Accepted Answer

A)   Its salts are much more soluble in water than those of the other alkali metals.
B)   It has an unusually high density.
C)   It forms molecular compounds with the hydrocarbon groups of organic halides.
D)   Its ionization energy is lower than expected.
E)   It does not react with water at room temperature.F) B) and D)
G) A) and E)

Question 14

Sulfuric acid is produced when sulfur dioxide dissolves in water.

Accepted Answer

A) True 
 B)False

Question 15

Which of the following is the strongest acid?

Accepted Answer

A)   HClO3
B)   HBrO3
C)   HIO3
D)   HIO2
E)   HClOF) B) and E)
G) B) and D)

Question 16

Predict the products for the reaction of the following set of reactants. MgCO3(s)  + heat  →\rightarrow→

Accepted Answer

A)   Mg(s)  + CO(g) 
B)   Mg(s)  + CO2(g) 
C)   MgO(s)  + CO(g) 
D)   MgO(s)  + CO2(g) 
E)   no reaction F) B) and E)
G) C) and D)

Question 17

Which of the following will have the highest boiling point?

Accepted Answer

A)   O2
B)   Cl2
C)   Br2
D)   I2
E)   XeF) C) and E)
G) A) and D)

Question 18

Which element forms compounds which are involved in smog and acid rain?

Accepted Answer

A)   carbon
B)   fluorine
C)   chlorine
D)   boron
E)   nitrogenF) A) and E)
G) All of the above

Question 19

Which element forms compounds, e.g., Teflon, which are used as coatings for other substances?

Accepted Answer

A)   boron
B)   beryllium
C)   fluorine
D)   nitrogen
E)   sodiumF) None of the above
G) A) and B)

Question 20

Hydrogen peroxide, H2O2, is

Accepted Answer

A)   used in the production of polymers.
B)   used as a drying agent.
C)   colored liquid with a low boiling point.
D)   an acid.
E)   an explosive.F) B) and C)
G) B) and D)

Exam 14: Periodic Patterns in the Main-Group Elements

Ozone is both a pollutant and a natural component of the atmosphere.

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In which of the following ways is lithium different from the other alkali metals?

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Which element forms compounds, e.g., Teflon, which are used as coatings for other substances?

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Which of the following is an accurate comparison of the properties of nitrogen and oxygen?

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Which of the following is the strongest acid?

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Predict the products formed from the following set of reactants. FeSe(s) + HCl(aq) →\rightarrow→

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Dinitrogen monoxide, N2O, is

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Sulfuric acid is produced when sulfur dioxide dissolves in water.

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Predict the products for the following set of reactants. K2O(s) + H2O(l) →\rightarrow→

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Hydrogen peroxide, H2O2, is

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When elements from a group exhibit more than one oxidation state,

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Sulfur hexafluoride is a pollutant responsible for acid rain.

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Carbon monoxide's toxicity is related to its ability to bond to iron in hemoglobin.

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Which element forms compounds which are involved in smog and acid rain?

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Which of the following will have the highest boiling point?

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Predict the products for the reaction of the following set of reactants. MgCO3(s) + heat →\rightarrow→

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Which of the following pure substances will not participate in hydrogen bonding?

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The acidity of oxides of main group elements increases down a group, from top to bottom.

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One important feature of the chemistry of carbon is

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Predict the products for the following set of reactants. Li(s) + H2O(l) →\rightarrow→

Correct AnswerverifiedShow Answer

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Predict the products formed from the following set of reactants. FeSe(s) + HCl(aq) $\rightarrow$

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Dinitrogen monoxide, N₂O, is

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Predict the products for the following set of reactants. K₂O(s) + H₂O(l) $\rightarrow$

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Hydrogen peroxide, H₂O₂, is

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Predict the products for the reaction of the following set of reactants. MgCO₃(s) + heat $\rightarrow$

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Predict the products for the following set of reactants. Li(s) + H₂O(l) $\rightarrow$

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