Question 1

Predict the products for the following set of reactants. Cs(s)  + Br2(l)  

Accepted Answer

A)   CsBr(s) 
B)   CsBr2(s) 
C)   CsBr(l) 
D)   CsBr2(l) 
E)   Cs2Br(s) F) B) and E)
G) C) and D)

Question 2

Which of the following pairs of elements will form the longest single bond?

Accepted Answer

A)   C, F
B)   C, N
C)   C, S
D)   C, O
E)   C, HF) A) and D)
G) A) and C)

Question 3

Which of the following substances is produced when lithium metal reacts with oxygen gas?

Accepted Answer

A)   hydrogen gas
B)   lithium peroxide
C)   an acidic oxide
D)   a basic oxide
E)   lithium hydroxideF) A) and B)
G) None of the above

Question 4

Ionic hydrides do not have exact (stoichiometric) formulas.

Accepted Answer

A) True 
 B)False

Question 5

In gaseous BeCl2, Be does not obey the octet rule; in solid BeCl2 it does.

Accepted Answer

A) True 
 B)False

Question 6

Identify by number (1A-8A) the main-group of the periodic table to which the described element (X) belongs, in each of the following cases.
a. X commonly forms the ion X2-.
b. X reacts with water according to the equation
X(s) + 2H2O(l) F1F1F1S1F1F1F10 X(OH)2(aq) + H2(g)
c. X exists as molecules, X2; its hydride has the formula HX.
d. X is a metal which reacts with oxygen to produce the peroxide, X2O2.

Accepted Answer

a. 6A (16)...

Question 7

Sulfur hexafluoride is a pollutant responsible for acid rain.

Accepted Answer

A) True 
 B)False

Question 8

Sodium hypochlorite is used

Accepted Answer

A)   in chemical analysis.
B)   as an oxidizer in rocket fuels.
C)   as a disinfectant.
D)   in the manufacture of steel.
E)   as a detergent.F) C) and E)
G) A) and B)

Question 9

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) C) and E)
G) B) and D)

Question 10

Silicon carbide is an important industrial chemical. Which of the following statements about silicon carbide is true?

Accepted Answer

A)   It will react with water to form acetylene.
B)   It is used in preparation of glass which can be used at high temperature.
C)   It is the hardest known substance.
D)   It is a naturally occurring mineral source of silicon.
E)   It can be doped to form a high temperature semiconductor.F) A) and C)
G) A) and B)

Question 11

If an alkali metal is represented by the symbol M, what is the formula of
a. the oxide of M?
b. the peroxide of M?
c. the superoxide of M?

Accepted Answer

The answer of If an alkali metal is represented by...

Question 12

The nitrate anion is

Accepted Answer

A)   a strong acid.
B)   a strong base.
C)   amphoteric.
D)   a strong reducing agent.
E)   a strong oxidizing agent.F) C) and D)
G) D) and E)

Question 13

The polymers containing silicon differ from polymers of carbon in which of the following ways?

Accepted Answer

A)   Silicon-based polymers are larger molecules than carbon-based polymers.
B)   Silicon-based polymers generally have a repeating silicon-oxygen link while carbon-based polymers can have carbon-carbon links.
C)   Silicon-based polymers generally have inorganic elements attached to the chain while carbon-based polymers generally have organic groups attached.
D)   Silicon-based polymers tend to be rigid while carbon-based polymers are generally flexible.
E)   Silicon forms stronger bonds than carbon.F) All of the above
G) A) and D)

Question 14

Group 1A elements are less reactive than group 2A elements.

Accepted Answer

A) True 
 B)False

Question 15

The halogens act as oxidizing agents in most of their reactions.

Accepted Answer

A) True 
 B)False

Question 16

The smallest ionization energies are found in the ____________ ___________ region of the periodic table.

Accepted Answer

A)   upper right
B)   upper left
C)   lower right
D)   lower left
E)   transition element (d-block) F) All of the above
G) A) and B)

Question 17

Oxygen gas (O2) is paramagnetic, but ozone (O3) is diamagnetic.

Accepted Answer

A) True 
 B)False

Question 18

Which of the following is the strongest acid?

Accepted Answer

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

Question 19

Phosphoric acid (H3PO4) is a strong acid.

Accepted Answer

A) True 
 B)False

Question 20

Neon does not form any known compounds.

Accepted Answer

A) True 
 B)False

Exam 14: Periodic Patterns in the Main Group Elements: Bonding, Structure, and Reactivity

Correct Answer
verified
a. 6A (16)...
View Answer

The nitrate anion is

Correct Answer
verified

Sodium hypochlorite is used

Correct Answer
verified

Silicon carbide is an important industrial chemical. Which of the following statements about silicon carbide is true?

Correct Answer
verified

Sulfur hexafluoride is a pollutant responsible for acid rain.

Correct Answer
verified

In gaseous BeCl₂, Be does not obey the octet rule; in solid BeCl₂ it does.

Correct Answer
verified

Hydrogen peroxide, H₂O₂, is

Correct Answer
verified

The polymers containing silicon differ from polymers of carbon in which of the following ways?

Correct Answer
verified

The halogens act as oxidizing agents in most of their reactions.

Correct Answer
verified

If an alkali metal is represented by the symbol M, what is the formula of a. the oxide of M? b. the peroxide of M? c. the superoxide of M?

Correct Answer
verified

Which of the following is the strongest acid?

Correct Answer
verified

Predict the products for the following set of reactants. Cs(s) + Br₂(l) 

Correct Answer
verified

Ionic hydrides do not have exact (stoichiometric) formulas.

Correct Answer
verified

Oxygen gas (O₂) is paramagnetic, but ozone (O₃) is diamagnetic.

Correct Answer
verified

Phosphoric acid (H₃PO₄) is a strong acid.

Correct Answer
verified

Which of the following pairs of elements will form the longest single bond?

Correct Answer
verified

Which of the following substances is produced when lithium metal reacts with oxygen gas?

Correct Answer
verified

Neon does not form any known compounds.

Correct Answer
verified

Group 1A elements are less reactive than group 2A elements.

Correct Answer
verified

The smallest ionization energies are found in the __ _ region of the periodic table.

Correct Answer
verified

Exam 14: Periodic Patterns in the Main Group Elements: Bonding, Structure, and Reactivity

Correct Answerverifieda. 6A (16)...View AnswerShow Answer

The nitrate anion is

Correct AnswerverifiedShow Answer

Sodium hypochlorite is used

Correct AnswerverifiedShow Answer

Silicon carbide is an important industrial chemical. Which of the following statements about silicon carbide is true?

Correct AnswerverifiedShow Answer

Sulfur hexafluoride is a pollutant responsible for acid rain.

Correct AnswerverifiedShow Answer

In gaseous BeCl2, Be does not obey the octet rule; in solid BeCl2 it does.

Correct AnswerverifiedShow Answer

Hydrogen peroxide, H2O2, is

Correct AnswerverifiedShow Answer

The polymers containing silicon differ from polymers of carbon in which of the following ways?

Correct AnswerverifiedShow Answer

The halogens act as oxidizing agents in most of their reactions.

Correct AnswerverifiedShow Answer

If an alkali metal is represented by the symbol M, what is the formula of a. the oxide of M? b. the peroxide of M? c. the superoxide of M?

Correct AnswerverifiedShow Answer

Which of the following is the strongest acid?

Correct AnswerverifiedShow Answer

Predict the products for the following set of reactants. Cs(s) + Br2(l) 

Correct AnswerverifiedShow Answer

Ionic hydrides do not have exact (stoichiometric) formulas.

Correct AnswerverifiedShow Answer

Oxygen gas (O2) is paramagnetic, but ozone (O3) is diamagnetic.

Correct AnswerverifiedShow Answer

Phosphoric acid (H3PO4) is a strong acid.

Correct AnswerverifiedShow Answer

Which of the following pairs of elements will form the longest single bond?

Correct AnswerverifiedShow Answer

Which of the following substances is produced when lithium metal reacts with oxygen gas?

Correct AnswerverifiedShow Answer

Neon does not form any known compounds.

Correct AnswerverifiedShow Answer

Group 1A elements are less reactive than group 2A elements.

Correct AnswerverifiedShow Answer

The smallest ionization energies are found in the ____________ ___________ region of the periodic table.

Correct AnswerverifiedShow Answer

Correct Answer
verified
a. 6A (16)...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

In gaseous BeCl₂, Be does not obey the octet rule; in solid BeCl₂ it does.

Correct Answer
verified

Hydrogen peroxide, H₂O₂, is

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Predict the products for the following set of reactants. Cs(s) + Br₂(l) 

Correct Answer
verified

Correct Answer
verified

Oxygen gas (O₂) is paramagnetic, but ozone (O₃) is diamagnetic.

Correct Answer
verified

Phosphoric acid (H₃PO₄) is a strong acid.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

The smallest ionization energies are found in the __ _ region of the periodic table.

Correct Answer
verified