Question 1

Bromine will form compounds with each of the other elements in Period 4 of the periodic table. How does the type of bonding in the compounds change as one moves from potassium bromide to selenium bromide?

Accepted Answer

A)   ionic to polar covalent
B)   polar covalent to ionic
C)   polar covalent to non-polar covalent
D)   coordinate covalent to polar covalent
E)   none of the above

Question 2

Which, if any, of the following generalized formulas does not exist for interhalogen compounds? (X and Y represent different halogens.)

Accepted Answer

A)   XY
B)   XY2
C)   XY3
D)   XY5
E)   All the above can represent stable interhalogen compounds.

Question 3

Which of the following will have the highest boiling point?

Accepted Answer

A)   O2
B)   Cl2
C)   Br2
D)   I2
E)   Xe

Question 4

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 the above conclusions is true.

Question 5

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.

Question 6

Which of the following ions and atoms has the greatest radius?

Accepted Answer

A)   Se2-
B)   Br-
C)   Rb+
D)   Sr2+
E)   Kr

Question 7

Most of the alkali metal salts are soluble in water while many alkaline earth salts have very low solubilities. Why is this so?

Accepted Answer

A)   The alkali metal cations are smaller than the alkaline earth cations and are more easily hydrated.
B)   The alkali metals have lower ionization energies than alkaline earth elements.
C)   The alkaline earth salts have much greater lattice energies than the alkali metal salts.
D)   The alkaline earth metals have greater heats of atomization than the alkali metals.
E)   Alkaline earth cations have very low heats of hydration.

Question 8

Although the periodic table is organized according to the atomic numbers of the elements, chemists are more interested in the arrangement of the electrons for their studies. Which of the following statements about the electron configurations and their quantum numbers is correct?

Accepted Answer

A)   The size of an atom is associated with the angular momentum quantum number.
B)   The valence electrons of atoms in a particular group have the same principal and angular momentum quantum numbers.
C)   The valence electrons of atoms in a particular group have the same angular momentum quantum number but have different principal quantum numbers.
D)   Quantum numbers for the electrons tell us little about the relative energies of the electrons.
E)   None of the above statements is correct.

Question 9

Certain Period 2 elements exhibit behaviors similar to Period 3 elements immediately below and to the right. One of these interesting diagonal relationships occurs between lithium and magnesium. Which of the following is one of their similarities?

Accepted Answer

A)   They both form insoluble carbonate salts.
B)   Both elements are important in treating manic-depression.
C)   Their first ionization energies are almost equal.
D)   Their densities are very similar.
E)   They both form organic compounds with polar covalent bonds from the metal to hydrocarbon group.

Question 10

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.

Question 11

Elements of group 1A have higher melting and boiling points than those of group 2A.

Accepted Answer

A) True 
 B)False

Question 12

Consider the oxides XO2, where X is a main-group element. Identify X in each of the following cases:
a. XO2 is a natural component of the atmosphere, implicated in global warming.
b. XO2 is a toxic, brown gas and a component of photochemical smog.
c. XO2 is a colorless, toxic gas, implicated in acid rain.
d. XO2 is network solid; one form of it is the mineral quartz.

Accepted Answer

a. C
b. N
...

Question 13

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

Accepted Answer

A)   Ca2+(aq)  + OH-(aq)  + H2(g) 
B)   Ca2+(aq)  + H2(g)  + O2(g) 
C)   Ca2+(aq)  + H3O+(aq) 
D)   Ca(OH) 2(s) 
E)   CaH2(s)  + O2(g)

Question 14

What are the products of the following reaction of strontium hydride and water? SrH2(s)  + H2O(l)  

Accepted Answer

A)   Sr2+(aq)  + H2(g)  + O2(g) 
B)   Sr2+(aq)  + H2(g)  + OH-(aq) 
C)   Sr(s)  + H2(g)  + OH-(aq) 
D)   Sr(s)  + H3O+(aq) 
E)   none of the above

Question 15

Predict the products for the following set of reactants. Cl2(g)  + I-(aq)  

Accepted Answer

A)   ICl
B)   ICl2
C)   ICl3
D)   I2 + Cl-
E)   I + Cl2-

Question 16

Which of the following oxides will be the most acidic?

Accepted Answer

A)   Al2O3
B)   Ga2O3
C)   In2O3
D)   Tl2O3
E)   None of these oxides is acidic.

Question 17

The chemical that ranks first in production among all industrial chemicals is

Accepted Answer

A)   NH3, ammonia.
B)   H3PO4, phosphoric acid.
C)   NaOH, sodium hydroxide.
D)   Na2CO3, sodium carbonate.
E)   H2SO4, sulfuric acid.

Question 18

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)   sodium

Question 19

What are the products of the reaction of potassium hydride and water? KH(s)  + H2O(l)  

Accepted Answer

A)   K(s)  + H2(g)  + OH-(aq) 
B)   K(s)  + H2(g)  + O2(g) 
C)   KOH(s)  + O2(g) 
D)   K+(aq)  + H2(g)  + O2(g) 
E)   K+(aq)  + H2(g)  + OH-(aq)

Question 20

Tin reacts to form several organic compounds. Which of the following is a use for organotin compounds?

Accepted Answer

A)   They are starting materials for polymers.
B)   They can be used as fungicides.
C)   They can be used to prepare semiconductors.
D)   They can be used as solvents for reactions involving polar organic compounds.
E)   They are used as protective coatings to prevent corrosion of metals.

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

Certain Period 2 elements exhibit behaviors similar to Period 3 elements immediately below and to the right. One of these interesting diagonal relationships occurs between lithium and magnesium. Which of the following is one of their similarities?

Correct Answer
verified

Tin reacts to form several organic compounds. Which of the following is a use for organotin compounds?

Correct Answer
verified

Which of the following ions and atoms has the greatest radius?

Correct Answer
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Elements of group 1A have higher melting and boiling points than those of group 2A.

Correct Answer
verified

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

Correct Answer
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Which, if any, of the following generalized formulas does not exist for interhalogen compounds? (X and Y represent different halogens.)

Correct Answer
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Predict the products for the reaction of the following set of reactants. CaO(s) + H₂O(l) 

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

Correct Answer
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The chemical that ranks first in production among all industrial chemicals is

Correct Answer
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What are the products of the reaction of potassium hydride and water? KH(s) + H₂O(l) 

Correct Answer
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Most of the alkali metal salts are soluble in water while many alkaline earth salts have very low solubilities. Why is this so?

Correct Answer
verified

What are the products of the following reaction of strontium hydride and water? SrH₂(s) + H₂O(l) 

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

Correct Answer
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Correct Answer
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a. C
b. N
...
View Answer

Bromine will form compounds with each of the other elements in Period 4 of the periodic table. How does the type of bonding in the compounds change as one moves from potassium bromide to selenium bromide?

Correct Answer
verified

Predict the products for the following set of reactants. Cl₂(g) + I^-(aq) 

Correct Answer
verified

One important feature of the chemistry of carbon is

Correct Answer
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Which of the following oxides will be the most acidic?

Correct Answer
verified

Although the periodic table is organized according to the atomic numbers of the elements, chemists are more interested in the arrangement of the electrons for their studies. Which of the following statements about the electron configurations and their quantum numbers is correct?

Correct Answer
verified

Which of the following will have the highest boiling point?

Correct Answer
verified

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

Certain Period 2 elements exhibit behaviors similar to Period 3 elements immediately below and to the right. One of these interesting diagonal relationships occurs between lithium and magnesium. Which of the following is one of their similarities?

Correct AnswerverifiedShow Answer

Tin reacts to form several organic compounds. Which of the following is a use for organotin compounds?

Correct AnswerverifiedShow Answer

Which of the following ions and atoms has the greatest radius?

Correct AnswerverifiedShow Answer

Elements of group 1A have higher melting and boiling points than those of group 2A.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which, if any, of the following generalized formulas does not exist for interhalogen compounds? (X and Y represent different halogens.)

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The chemical that ranks first in production among all industrial chemicals is

Correct AnswerverifiedShow Answer

What are the products of the reaction of potassium hydride and water? KH(s) + H2O(l) 

Correct AnswerverifiedShow Answer

Most of the alkali metal salts are soluble in water while many alkaline earth salts have very low solubilities. Why is this so?

Correct AnswerverifiedShow Answer

What are the products of the following reaction of strontium hydride and water? SrH2(s) + H2O(l) 

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Correct Answerverifieda. Cb. N...View AnswerShow Answer

Bromine will form compounds with each of the other elements in Period 4 of the periodic table. How does the type of bonding in the compounds change as one moves from potassium bromide to selenium bromide?

Correct AnswerverifiedShow Answer

Predict the products for the following set of reactants. Cl2(g) + I-(aq) 

Correct AnswerverifiedShow Answer

One important feature of the chemistry of carbon is

Correct AnswerverifiedShow Answer

Which of the following oxides will be the most acidic?

Correct AnswerverifiedShow Answer

Although the periodic table is organized according to the atomic numbers of the elements, chemists are more interested in the arrangement of the electrons for their studies. Which of the following statements about the electron configurations and their quantum numbers is correct?

Correct AnswerverifiedShow Answer

Which of the following will have the highest boiling point?

Correct AnswerverifiedShow Answer

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Predict the products for the reaction of the following set of reactants. CaO(s) + H₂O(l) 

Correct Answer
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Correct Answer
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Correct Answer
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What are the products of the reaction of potassium hydride and water? KH(s) + H₂O(l) 

Correct Answer
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Correct Answer
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What are the products of the following reaction of strontium hydride and water? SrH₂(s) + H₂O(l) 

Correct Answer
verified

Correct Answer
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Correct Answer
verified
a. C
b. N
...
View Answer

Correct Answer
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Predict the products for the following set of reactants. Cl₂(g) + I^-(aq) 

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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