Question 1

Which of the following elements would be the most likely to form an oxide with the formula XO and a hydride with the formula XH2 (X represents the unknown element)?

Accepted Answer

A)  Na 
B)  Mg 
C)  Al 
D)  Si 
E)  P 
A)  Na 
B)  Mg 
C)  Al 
D)  Si 
E)  P

Question 2

Lithium ion batteries are high energy density 3.6 V batteries that use a
Lithium salt such as LiCoO2 or LiPF6 for the positive electrode, or cathode. Use the positions of lithium and fluorine in the periodic table to predict the oxidation state of the phosphorus atom in LiPF6.

Accepted Answer

A)  +1 
B)  +2 
C)  +3 
D)  +4 
E)  +5 
A)  +1 
B)  +2 
C)  +3 
D)  +4 
E)  +5

Question 3

Use the positions of silicon and fluorine in the periodic table to predict the most likely product of the reaction between silicon and fluorine.

Accepted Answer

A)  SiF 
B)  SiF2 
C)  SiF4 
D)  Si2F 
E)  Si3F4 
A)  SiF 
B)  SiF2 
C)  SiF4 
D)  Si2F 
E)  Si3F4

Question 4

The bond-type triangle can be used for 
  
-Describe what happens to the distribution of electrons in the bond between two elements as you move from left to right on a bond-type triangle. Describe what happens to the distribution of the electrons in a bond between two elements as you move from the bottom to the top of a bond-type triangle.

Accepted Answer

As you move from left to right the elect

Question 5

Which element is hydrogen most like to combine with to form a hydride?

Accepted Answer

A)  C 
B)  S 
C)  N 
D)  Na 
E)  O 
A)  C 
B)  S 
C)  N 
D)  Na 
E)  O

Question 6

What is the most likely electronic configuration of the Co2+ ion?

Accepted Answer

A)  [Ar]3d7 
B)  [Ar]4s23d7 
C)  [Ar]4s23d5 
D)  [Kr]5s24d7 
E)  None of the above 
A)  [Ar]3d7 
B)  [Ar]4s23d7 
C)  [Ar]4s23d5 
D)  [Kr]5s24d7 
E)  None of the above

Question 7

Determine the oxidation number of sulfur in sulfurous acid, H2SO3.

Accepted Answer

A)  +6 
B)  +4 
C)  +2 
D)  -2 
E)  none of these 
A)  +6 
B)  +4 
C)  +2 
D)  -2 
E)  none of these

Question 8

Identify the reducing agent and oxidizing agent in the reaction:

H2O2(aq) + 2 HI(aq)  $\rightarrow$  2 H2O(l) + I2(s)

Accepted Answer

Oxidizing Agent: H<s

Question 9

A mineral called montmorillonite will catalyze some interesting reactions. The formula of one type of montmorillonite is NaCa4(Si2O5)4F. If Na has a charge of +1, Ca has a charge of +2, and F has a charge of -1, what is the charge on each Si2O5 complex ion?

Accepted Answer

A)  +2 
B)  +3 
C)  -2 
D)  +4 
E)  -4 
A)  +2 
B)  +3 
C)  -2 
D)  +4 
E)  -4

Question 10

The bond-type triangle can be used for 
  
-Use a bond-type triangle to predict the correct arrangement of the following compounds in order of increasing covalent character.
Mg Zn2, CCl4, SiH4

Accepted Answer

A)  Mg Zn2 4 4 
B)  CCl4 2 4 
C)  CCl4 4 2 
D)  MgZn2 4 4 
E)  none of these 
A)  Mg Zn2 4 4 
B)  CCl4 2 4 
C)  CCl4 4 2 
D)  MgZn2 4 4 
E)  none of these

Question 11

Give the chemical formula for hyposulfurous acid.

Accepted Answer

A)  H2SO2 
B)  H2S 
C)  NaHSO3 
D)  HSO3 
E)  H2SO4 
A)  H2SO2 
B)  H2S 
C)  NaHSO3 
D)  HSO3 
E)  H2SO4

Question 12

Determine the oxidation number of the central carbon atom in the following compound.

Accepted Answer

A)  +2 
B)  -2 
C)  +4 
D)  -4 
E)  none of these 
A)  +2 
B)  -2 
C)  +4 
D)  -4 
E)  none of these

Question 13

The bond-type triangle can be used for 
  
-Using a bond-type triangle, predict which of the following compounds would have approximately 50% ionic bonding and 50% covalent bonding.

Accepted Answer

A)  AlCl3 
B)  Li3As 
C)  AlAs 
D)  BN 
E)  none of these 
A)  AlCl3 
B)  Li3As 
C)  AlAs 
D)  BN 
E)  none of these

Question 14

In the following redox reaction which element is being oxidized?

Cu(s) + 4 HNO3(aq)  $\rightarrow$  Cu(NO3)2 (aq) + 2 NO2

Accepted Answer

A)  Cu 
B)  H 
C)  N 
D)  O 
E)  none of these (g) + 2 H2O(l) 
A)  Cu 
B)  H 
C)  N 
D)  O 
E)  none of these (g) + 2 H2O(l)

Question 15

Predict the formulas for neutral compounds containing the following pairs of ions.
A) H+ and O22-
B) Zn2+ and PO43-
C) K+ and [PtCl6]2-

Accepted Answer

Question 16

What group of metals react with sulfur to form M2S3 sulfides, reacts with fluorine to form MF3 fluorides, and react with acid to form M3+ ions and H2 gas?

Accepted Answer

A)  IA 
B)  IIA 
C)  IIIA 
D)  IVA 
E)  VA 
A)  IA 
B)  IIA 
C)  IIIA 
D)  IVA 
E)  VA

Question 17

Which of the following metals would be the most reactive towards air and water?

Accepted Answer

A)  Ca 
B)  Al 
C)  Ag 
D)  Sn 
E)  Pb 
A)  Ca 
B)  Al 
C)  Ag 
D)  Sn 
E)  Pb

Question 18

Which of the following is the most likely product of the reaction between magnesium metal and nitrogen?

Accepted Answer

A)  MgN 
B)  Mg2N 
C)  MgN2 
D)  Mg2N3 
E)  Mg3N2 
A)  MgN 
B)  Mg2N 
C)  MgN2 
D)  Mg2N3 
E)  Mg3N2

Question 19

The two most common ions of copper are Cu1+ and Cu2+. Give the most likely electron configuration of each of these ions.

Accepted Answer

Cu⁺ [Ar] 3d

Question 20

The bond-type triangle can be used for 
  
-Use a bond-type triangle to describe the bonding in CaH2.

Accepted Answer

A)  pure ionic 
B)  pure covalent 
C)  pure metallic 
D)  significant amount of both ionic and covalent character 
E)  significant amount of both ionic and metallic character 
A)  pure ionic 
B)  pure covalent 
C)  pure metallic 
D)  significant amount of both ionic and covalent character 
E)  significant amount of both ionic and metallic character

Which of the following elements would be the most likely to form an oxide with the formula XO and a hydride with the formula XH₂ (X represents the unknown element)?

Lithium ion batteries are high energy density 3.6 V batteries that use a Lithium salt such as LiCoO₂ or LiPF₆ for the positive electrode, or cathode. Use the positions of lithium and fluorine in the periodic table to predict the oxidation state of the phosphorus atom in LiPF₆.

Use the positions of silicon and fluorine in the periodic table to predict the most likely product of the reaction between silicon and fluorine.

Which element is hydrogen most like to combine with to form a hydride?

What is the most likely electronic configuration of the Co²⁺ ion?

Determine the oxidation number of sulfur in sulfurous acid, H₂SO₃.

Identify the reducing agent and oxidizing agent in the reaction: H₂O₂(aq) + 2 HI(aq) $\rightarrow$ 2 H₂O(l) + I₂(s)

A mineral called montmorillonite will catalyze some interesting reactions. The formula of one type of montmorillonite is NaCa₄(Si₂O₅)₄F. If Na has a charge of +1, Ca has a charge of +2, and F has a charge of -1, what is the charge on each Si₂O₅ complex ion?

The bond-type triangle can be used for -Use a bond-type triangle to predict the correct arrangement of the following compounds in order of increasing covalent character. Mg Zn₂, CCl₄, SiH₄

Give the chemical formula for hyposulfurous acid.

Determine the oxidation number of the central carbon atom in the following compound.

The bond-type triangle can be used for -Using a bond-type triangle, predict which of the following compounds would have approximately 50% ionic bonding and 50% covalent bonding.

In the following redox reaction which element is being oxidized? Cu(s) + 4 HNO₃(aq) $\rightarrow$ Cu(NO₃)₂ (aq) + 2 NO₂

Predict the formulas for neutral compounds containing the following pairs of ions. A) H⁺ and O₂^2- B) Zn²⁺ and PO₄^3- C) K⁺ and [PtCl6]2^-

What group of metals react with sulfur to form M₂S₃ sulfides, reacts with fluorine to form MF₃ fluorides, and react with acid to form M³⁺ ions and H₂ gas?

Which of the following metals would be the most reactive towards air and water?

Which of the following is the most likely product of the reaction between magnesium metal and nitrogen?

The two most common ions of copper are Cu¹⁺ and Cu²⁺. Give the most likely electron configuration of each of these ions.

The bond-type triangle can be used for -Use a bond-type triangle to describe the bonding in CaH₂.

Elements Compounds

The Mole

Structure of the Atom

The Covalent Bond

Gases

Making and Breaking of Bonds

Liquids and Solutions

Solids

An Introduction to Kinetics and Equilibrium

Acids and Bases

Oxidation-Reduction Reactions

Chemical Thermodynamics

Kinetics

Nuclear Chemistry

Organic Chemistry

Filters

Exam 5: Ionic and Metallic Bonds

Which of the following elements would be the most likely to form an oxide with the formula XO and a hydride with the formula XH2 (X represents the unknown element)?

Lithium ion batteries are high energy density 3.6 V batteries that use a Lithium salt such as LiCoO2 or LiPF6 for the positive electrode, or cathode. Use the positions of lithium and fluorine in the periodic table to predict the oxidation state of the phosphorus atom in LiPF6.

Use the positions of silicon and fluorine in the periodic table to predict the most likely product of the reaction between silicon and fluorine.

Which element is hydrogen most like to combine with to form a hydride?

What is the most likely electronic configuration of the Co2+ ion?

Determine the oxidation number of sulfur in sulfurous acid, H2SO3.

Identify the reducing agent and oxidizing agent in the reaction: H2O2(aq) + 2 HI(aq) →\rightarrow→ 2 H2O(l) + I2(s)

A mineral called montmorillonite will catalyze some interesting reactions. The formula of one type of montmorillonite is NaCa4(Si2O5)4F. If Na has a charge of +1, Ca has a charge of +2, and F has a charge of -1, what is the charge on each Si2O5 complex ion?

The bond-type triangle can be used for -Use a bond-type triangle to predict the correct arrangement of the following compounds in order of increasing covalent character. Mg Zn2, CCl4, SiH4

Give the chemical formula for hyposulfurous acid.

Determine the oxidation number of the central carbon atom in the following compound.

The bond-type triangle can be used for -Using a bond-type triangle, predict which of the following compounds would have approximately 50% ionic bonding and 50% covalent bonding.

In the following redox reaction which element is being oxidized? Cu(s) + 4 HNO3(aq) →\rightarrow→ Cu(NO3)2 (aq) + 2 NO2

Predict the formulas for neutral compounds containing the following pairs of ions. A) H+ and O22- B) Zn2+ and PO43- C) K+ and [PtCl6]2-

What group of metals react with sulfur to form M2S3 sulfides, reacts with fluorine to form MF3 fluorides, and react with acid to form M3+ ions and H2 gas?

Which of the following metals would be the most reactive towards air and water?

Which of the following is the most likely product of the reaction between magnesium metal and nitrogen?

The two most common ions of copper are Cu1+ and Cu2+. Give the most likely electron configuration of each of these ions.

The bond-type triangle can be used for -Use a bond-type triangle to describe the bonding in CaH2.

Elements Compounds

The Mole

Structure of the Atom

The Covalent Bond

Gases

Making and Breaking of Bonds

Liquids and Solutions

Solids

An Introduction to Kinetics and Equilibrium

Acids and Bases

Oxidation-Reduction Reactions

Chemical Thermodynamics

Kinetics

Nuclear Chemistry

Organic Chemistry

Filters

Which of the following elements would be the most likely to form an oxide with the formula XO and a hydride with the formula XH₂ (X represents the unknown element)?

Lithium ion batteries are high energy density 3.6 V batteries that use a Lithium salt such as LiCoO₂ or LiPF₆ for the positive electrode, or cathode. Use the positions of lithium and fluorine in the periodic table to predict the oxidation state of the phosphorus atom in LiPF₆.

What is the most likely electronic configuration of the Co²⁺ ion?

Determine the oxidation number of sulfur in sulfurous acid, H₂SO₃.

Identify the reducing agent and oxidizing agent in the reaction: H₂O₂(aq) + 2 HI(aq) $\rightarrow$ 2 H₂O(l) + I₂(s)

A mineral called montmorillonite will catalyze some interesting reactions. The formula of one type of montmorillonite is NaCa₄(Si₂O₅)₄F. If Na has a charge of +1, Ca has a charge of +2, and F has a charge of -1, what is the charge on each Si₂O₅ complex ion?

The bond-type triangle can be used for -Use a bond-type triangle to predict the correct arrangement of the following compounds in order of increasing covalent character. Mg Zn₂, CCl₄, SiH₄

In the following redox reaction which element is being oxidized? Cu(s) + 4 HNO₃(aq) $\rightarrow$ Cu(NO₃)₂ (aq) + 2 NO₂

Predict the formulas for neutral compounds containing the following pairs of ions. A) H⁺ and O₂^2- B) Zn²⁺ and PO₄^3- C) K⁺ and [PtCl6]2^-

What group of metals react with sulfur to form M₂S₃ sulfides, reacts with fluorine to form MF₃ fluorides, and react with acid to form M³⁺ ions and H₂ gas?

The two most common ions of copper are Cu¹⁺ and Cu²⁺. Give the most likely electron configuration of each of these ions.

The bond-type triangle can be used for -Use a bond-type triangle to describe the bonding in CaH₂.