Question 1

Potassium is a strong reducing agent.

Accepted Answer

A) True 
 B)False

Question 2

The most basic oxides contain elements from 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) C) and E)
G) C) and D)

Question 3

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

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 D)
G) C) and E)

Question 4

The halogens are

Accepted Answer

A)   strong oxidizing agents.
B)   strong reducing agents.
C)   strong acids.
D)   strong bases.
E)   amphoteric.F) A) and C)
G) C) and D)

Question 5

Name the three allotropes of carbon and briefly describe their properties and structures.

Accepted Answer

Graphite is the stablest allotrope under...

Question 6

The atomic radius of sodium is 186 pm and of chlorine is 100 pm. The ionic radius for Na+ is 102 pm and for Cl- is 181 pm. In going from Na to Cl in Period 3, why does the atomic radius decrease while the ionic radius increases?

Accepted Answer

A)   The inner electrons in the sodium cation shield its valence electrons more effectively than the inner electrons in the chloride anion do.
B)   The inner electrons shield the valence electrons more effectively in the chlorine atom than in the chloride anion.
C)   The outermost electrons in chloride experience a smaller effective nuclear charge than those in the sodium cation do.
D)   The outermost electrons in chloride experience a larger effective nuclear charge than those in the sodium cation do.
E)   Monatomic ions are bigger than the atoms from which they are formed.F) All of the above
G) B) and C)

Question 7

Predict the products for the reaction of the following set of reactants. (CH3) 3Ga(g)  + AsH3(g)  

Accepted Answer

A)   (CH3) 3As(g)  + GaH3(g) 
B)   CH4(g)  + GaAs(s) 
C)   CH3CH3(g)  + GaAs(s) 
D)   CH4(g)  + H2GaAs(s) 
E)   CH3H(g)  + GaAs(s) F) A) and E)
G) B) and E)

Question 8

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

Accepted Answer

A)   carbon
B)   fluorine
C)   chlorine
D)   boron
E)   nitrogenF) C) and D)
G) B) and C)

Question 9

Which one of the following trends occurs as one moves down the group 1A (1)  elements from Li to Cs?

Accepted Answer

A)   metallic character decreases
B)   electronegativity increases
C)   melting point increases
D)   first ionization energy increases
E)   chemical reactivity increasesF) D) and E)
G) All of the above

Question 10

The strongest elemental oxidizing agents are found in the _________ _________ region of the periodic table while the strongest reducing agents are found in the ________ ________ region of the periodic table.

Accepted Answer

A)   upper left, lower right
B)   upper right, lower left
C)   lower left, upper right
D)   lower right, upper left
E)   transition element, main groupF) All of the above
G) A) and B)

Question 11

Boron has 3 valence electrons. Which of the following processes is involved in boron's achieving a complete outer shell?

Accepted Answer

A)   formation of a B3+ cation
B)   formation of bridge bonds
C)   formation of -bonds using its d-orbitals
D)   formation of -bonds using sp3-orbitals
E)   none of the aboveF) None of the above
G) A) and C)

Question 12

In the gas phase, AlCl3 exists as molecules of Al2Cl6.

Accepted Answer

A) True 
 B)False

Question 13

Magnesium oxide, MgO, is an important industrial material. Which of the following is one of its uses?

Accepted Answer

A)   antacid
B)   catalysts
C)   toothpaste abrasive
D)   construction material
E)   furnace bricksF) C) and E)
G) B) and D)

Question 14

Select the element with the lowest first ionization energy.

Accepted Answer

A)   Se
B)   S
C)   Sn
D)   Sr
E)   HF) B) and E)
G) C) and E)

Question 15

Sulfur hexafluoride, SF6, is

Accepted Answer

A)   a reactive gas that decomposes when exposed to moisture.
B)   a reactive gas used to fluorinate organic compounds.
C)   an inert gas that is used as an electrical insulator.
D)   a reactant in the process of manufacturing non-stick coatings.
E)   used in the manufacture of sulfuric acid.F) B) and C)
G) None of the above

Question 16

Predict the products for the reaction of the following set of reactants. BaO(s)  + CO2(g)  

Accepted Answer

A)   BaCO3(s) 
B)   Ba(s)  + CO(g)  + O2(g) 
C)   BaO2(s)  + CO(g) 
D)   Ba2CO3(s) 
E)   BaC2(s)  + O2(g) F) A) and B)
G) B) and E)

Question 17

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

Accepted Answer

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

Question 18

Salts of group 1A metals are generally more soluble than those of group 2A metals.

Accepted Answer

A) True 
 B)False

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

Sulfur hexafluoride, SF₆, is

Correct Answer
verified

Salts of group 1A metals are generally more soluble than those of group 2A metals.

Correct Answer
verified

Boron has 3 valence electrons. Which of the following processes is involved in boron's achieving a complete outer shell?

Correct Answer
verified

Name the three allotropes of carbon and briefly describe their properties and structures.

Correct Answer
verified
Graphite is the stablest allotrope under...
View Answer

The most basic oxides contain elements from the ____ region of the periodic table.

Correct Answer
verified

Predict the products for the reaction of the following set of reactants. BaO(s) + CO₂(g) 

Correct Answer
verified

The strongest elemental oxidizing agents are found in the _____ _ region of the periodic table while the strongest reducing agents are found in the ____ region of the periodic table.

Correct Answer
verified

In the gas phase, AlCl₃ exists as molecules of Al₂Cl₆.

Correct Answer
verified

Select the element with the lowest first ionization energy.

Correct Answer
verified

Potassium is a strong reducing agent.

Correct Answer
verified

Magnesium oxide, MgO, is an important industrial material. Which of the following is one of its uses?

Correct Answer
verified

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

Correct Answer
verified

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

Correct Answer
verified

The atomic radius of sodium is 186 pm and of chlorine is 100 pm. The ionic radius for Na⁺ is 102 pm and for Cl^- is 181 pm. In going from Na to Cl in Period 3, why does the atomic radius decrease while the ionic radius increases?

Correct Answer
verified

The halogens are

Correct Answer
verified

Predict the products for the reaction of the following set of reactants. (CH₃) ₃Ga(g) + AsH₃(g) 

Correct Answer
verified

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

Correct Answer
verified

Which one of the following trends occurs as one moves down the group 1A (1) elements from Li to Cs?

Correct Answer
verified

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

Sulfur hexafluoride, SF6, is

Correct AnswerverifiedShow Answer

Salts of group 1A metals are generally more soluble than those of group 2A metals.

Correct AnswerverifiedShow Answer

Boron has 3 valence electrons. Which of the following processes is involved in boron's achieving a complete outer shell?

Correct AnswerverifiedShow Answer

Name the three allotropes of carbon and briefly describe their properties and structures.

Correct AnswerverifiedGraphite is the stablest allotrope under...View AnswerShow Answer

The most basic oxides contain elements from the ________________ ____________ region of the periodic table.

Correct AnswerverifiedShow Answer

Predict the products for the reaction of the following set of reactants. BaO(s) + CO2(g) 

Correct AnswerverifiedShow Answer

The strongest elemental oxidizing agents are found in the _________ _________ region of the periodic table while the strongest reducing agents are found in the ________ ________ region of the periodic table.

Correct AnswerverifiedShow Answer

In the gas phase, AlCl3 exists as molecules of Al2Cl6.

Correct AnswerverifiedShow Answer

Select the element with the lowest first ionization energy.

Correct AnswerverifiedShow Answer

Potassium is a strong reducing agent.

Correct AnswerverifiedShow Answer

Magnesium oxide, MgO, is an important industrial material. Which of the following is one of its uses?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The atomic radius of sodium is 186 pm and of chlorine is 100 pm. The ionic radius for Na+ is 102 pm and for Cl- is 181 pm. In going from Na to Cl in Period 3, why does the atomic radius decrease while the ionic radius increases?

Correct AnswerverifiedShow Answer

The halogens are

Correct AnswerverifiedShow Answer

Predict the products for the reaction of the following set of reactants. (CH3) 3Ga(g) + AsH3(g) 

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which one of the following trends occurs as one moves down the group 1A (1) elements from Li to Cs?

Correct AnswerverifiedShow Answer

Sulfur hexafluoride, SF₆, is

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Graphite is the stablest allotrope under...
View Answer

The most basic oxides contain elements from the ____ region of the periodic table.

Correct Answer
verified

Predict the products for the reaction of the following set of reactants. BaO(s) + CO₂(g) 

Correct Answer
verified

The strongest elemental oxidizing agents are found in the _____ _ region of the periodic table while the strongest reducing agents are found in the ____ region of the periodic table.

Correct Answer
verified

In the gas phase, AlCl₃ exists as molecules of Al₂Cl₆.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

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

Correct Answer
verified

Correct Answer
verified

The atomic radius of sodium is 186 pm and of chlorine is 100 pm. The ionic radius for Na⁺ is 102 pm and for Cl^- is 181 pm. In going from Na to Cl in Period 3, why does the atomic radius decrease while the ionic radius increases?

Correct Answer
verified

Correct Answer
verified

Predict the products for the reaction of the following set of reactants. (CH₃) ₃Ga(g) + AsH₃(g) 

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified