Question 1

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) A) and D)
G) C) and D)

Question 2

Write balanced equations,showing all reactants and products,to represent
a.the reaction of calcium metal with water.
b.the reaction of aluminum metal with oxygen gas.

Accepted Answer

a.Ca(s)+ 2H₂O(l)

C...

Question 3

Phosphoric acid (H3PO4)is a strong acid.

Accepted Answer

A) True 
 B)False

Question 4

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) $\to$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 5

Predict the molecular shape of XeF3-.

Accepted Answer

A)  linear
B)  trigonal planar
C)  trigonal pyramid
D)  T-shaped
E)  squareF) A) and B)
G) B) and E)

Question 6

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) All of the above
G) B) and C)

Question 7

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

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

Question 8

Predict the products for the reaction of the following set of reactants.
Sr(s) + H2O(l)   →	o→

Accepted Answer

A)  SrO(s) + H2(g) 
B)  Sr2+(aq) + H2(g) + O2(g) 
C)  Sr2+(aq) + H3O+(aq) 
D)  Sr2+(aq) + OH-(aq) + H2(g) 
E)  SrH2(s) + O2(g)  F) A) and C)
G) A) and B)

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) A) and B)
G) B) and D)

Question 10

Potassium nitrate is a strong reducing agent.

Accepted Answer

A) True 
 B)False

Question 11

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

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) A) and B)
G) C) and E)

Question 12

Neon does not form any known compounds.

Accepted Answer

A) True 
 B)False

Question 13

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

Accepted Answer

A)  CsBr(s) 
B)  CsBr2(s) 
C)  CsBr(l) 
D)  CsBr2(l) 
E)  Cs2Br(s)  F) A) and D)
G) All of the above

Question 14

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 beryllium and aluminum.Which of the following is one of their differences?

Accepted Answer

A)  Some aluminum compounds and all beryllium compounds show significant covalent character in the gas phase.
B)  Beryllium forms bridge bonds in its hydrides while aluminum does not.
C)  Both form oxides that are impervious to reaction with water.
D)  The cations for both strongly polarize nearby electron clouds.
E)  Beryllium occurs in nature as the uncombined element,whereas aluminum does not.F) A) and E)
G) A) and D)

Question 15

The halogens are

Accepted Answer

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

Question 16

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

Accepted Answer

A) True 
 B)False

Question 17

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

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 D)
G) B) and D)

Question 18

The Haber process is the first step in the manufacture of sulfuric acid.

Accepted Answer

A) True 
 B)False  False

Question 19

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.F) B) and D)
G) A) and B) E

Question 20

Ionic hydrides do not have exact (stoichiometric)formulas.

Accepted Answer

A) True 
 B)False  False

Exam 14: The Main-Group Elements: Applying Principles of Bonding and Structure

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

Correct Answer
verified

Write balanced equations,showing all reactants and products,to represent a.the reaction of calcium metal with water. b.the reaction of aluminum metal with oxygen gas.

Correct Answer
verified
a.Ca(s)+ 2H₂O(l) C...
View Answer

Phosphoric acid (H₃PO₄)is a strong acid.

Correct Answer
verified

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

Predict the molecular shape of XeF₃^-.

Correct Answer
verified

The nitrate anion is

Correct Answer
verified

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

Correct Answer
verified

Predict the products for the reaction of the following set of reactants. Sr(s) + H₂O(l) $\to$

Correct Answer
verified

One important feature of the chemistry of carbon is

Correct Answer
verified

Potassium nitrate is a strong reducing agent.

Correct Answer
verified

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

Correct Answer
verified

Neon does not form any known compounds.

Correct Answer
verified

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

Correct Answer
verified

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 beryllium and aluminum.Which of the following is one of their differences?

Correct Answer
verified

The halogens are

Correct Answer
verified

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

Correct Answer
verified

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

Correct Answer
verified

The Haber process is the first step in the manufacture of sulfuric acid.

Correct Answer
verified
False

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
E

Ionic hydrides do not have exact (stoichiometric)formulas.

Correct Answer
verified
False

Exam 14: The Main-Group Elements: Applying Principles of Bonding and Structure

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

Correct AnswerverifiedShow Answer

Write balanced equations,showing all reactants and products,to represent a.the reaction of calcium metal with water. b.the reaction of aluminum metal with oxygen gas.

Correct Answerverifieda.Ca(s)+ 2H2O(l) C...View AnswerShow Answer

Phosphoric acid (H3PO4)is a strong acid.

Correct AnswerverifiedShow Answer

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

Predict the molecular shape of XeF3-.

Correct AnswerverifiedShow Answer

The nitrate anion is

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Predict the products for the reaction of the following set of reactants. Sr(s) + H2O(l) →\to→

Correct AnswerverifiedShow Answer

One important feature of the chemistry of carbon is

Correct AnswerverifiedShow Answer

Potassium nitrate is a strong reducing agent.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Neon does not form any known compounds.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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 beryllium and aluminum.Which of the following is one of their differences?

Correct AnswerverifiedShow Answer

The halogens are

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The Haber process is the first step in the manufacture of sulfuric acid.

Correct AnswerverifiedFalse

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 AnswerverifiedE

Ionic hydrides do not have exact (stoichiometric)formulas.

Correct AnswerverifiedFalse

Correct Answer
verified

Correct Answer
verified
a.Ca(s)+ 2H₂O(l) C...
View Answer

Phosphoric acid (H₃PO₄)is a strong acid.

Correct Answer
verified

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

Predict the molecular shape of XeF₃^-.

Correct Answer
verified

Correct Answer
verified

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

Correct Answer
verified

Predict the products for the reaction of the following set of reactants. Sr(s) + H₂O(l) $\to$

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

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

Correct Answer
verified

Correct Answer
verified

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

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

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

Correct Answer
verified

Correct Answer
verified
False

Correct Answer
verified
E

Correct Answer
verified
False