(a) Interpretation: The picture of bands for each metal Hf , Pt , and Re should be determined. Concept introduction: The band theory is used to explain hardness, electrical conductivity, melting point for different metals. It can be explained as a theory related to set of MOs that have very less energy difference between them. These sets of MOs are also known as bands. Melting point of any metal depends on occupancy of both MOs, bonding and antibonding. When the electron from bonding MO can be excessed easily relative to antibonding MO electrons, then melting point metal is higher.

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Answer 1

Question

Chapter 12, Problem 12.8A

Interpretation Introduction

(a)

Interpretation:

The picture of bands for each metal Hf, Pt, and Re should be determined.

Concept introduction:

The band theory is used to explain hardness, electrical conductivity, melting point for different metals. It can be explained as a theory related to set of MOs that have very less energy difference between them. These sets of MOs are also known as bands. Melting point of any metal depends on occupancy of both MOs, bonding and antibonding. When the electron from bonding MO can be excessed easily relative to antibonding MO electrons, then melting point metal is higher.

Interpretation Introduction

(b)

Interpretation:

The hardest metal should be determined and also, metal with highest melting point among Hf, Pt, and Re should be determined.

Concept introduction:

The band theory is used to explain hardness, electrical conductivity, melting point for different metals. It can be explained as a theory related to set of MOs that have very less energy difference between them. These sets of MOs are also known as bands. Melting point of any metal depends on occupancy of both MOs, bonding and antibonding. When the electron from bonding MO can be excessed easily relative to antibonding MO electrons, then melting point metal is higher.

Interpretation Introduction

(c)

Interpretation:

The softest metal and also, metal with lowest melting point among Hf, Pt, and Re should be determined.

Concept introduction:

The band theory is used to explain hardness, electrical conductivity, melting point for different metals. It can be explained as a theory related to set of MOs that have very less energy difference between them. These sets of MOs are also known as bands. Melting point of any metal depends on occupancy of both MOs, bonding and antibonding. When the electron from bonding MO can be excessed easily relative to antibonding MO electrons, then melting point metal is higher.

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6. Consider the following exothermic reaction below. 2Cu2+(aq) +41 (aq)2Cul(s) + 12(aq) a. If Cul is added, there will be a shift left/shift right/no shift (circle one). b. If Cu2+ is added, there will be a shift left/shift right/no shift (circle one). c. If a solution of AgNO3 is added, there will be a shift left/shift right/no shift (circle one). d. If the solvent hexane (C6H14) is added, there will be a shift left/shift right/no shift (circle one). Hint: one of the reaction species is more soluble in hexane than in water. e. If the reaction is cooled, there will be a shift left/shift right/no shift (circle one). f. Which of the changes above will change the equilibrium constant, K?

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Answer 2

Question

Chapter 12, Problem 12.8A

Interpretation Introduction

(a)

Interpretation:

The picture of bands for each metal Hf, Pt, and Re should be determined.

Concept introduction:

The band theory is used to explain hardness, electrical conductivity, melting point for different metals. It can be explained as a theory related to set of MOs that have very less energy difference between them. These sets of MOs are also known as bands. Melting point of any metal depends on occupancy of both MOs, bonding and antibonding. When the electron from bonding MO can be excessed easily relative to antibonding MO electrons, then melting point metal is higher.

Interpretation Introduction

(b)

Interpretation:

The hardest metal should be determined and also, metal with highest melting point among Hf, Pt, and Re should be determined.

Concept introduction:

The band theory is used to explain hardness, electrical conductivity, melting point for different metals. It can be explained as a theory related to set of MOs that have very less energy difference between them. These sets of MOs are also known as bands. Melting point of any metal depends on occupancy of both MOs, bonding and antibonding. When the electron from bonding MO can be excessed easily relative to antibonding MO electrons, then melting point metal is higher.

Interpretation Introduction

(c)

Interpretation:

The softest metal and also, metal with lowest melting point among Hf, Pt, and Re should be determined.

Concept introduction:

The band theory is used to explain hardness, electrical conductivity, melting point for different metals. It can be explained as a theory related to set of MOs that have very less energy difference between them. These sets of MOs are also known as bands. Melting point of any metal depends on occupancy of both MOs, bonding and antibonding. When the electron from bonding MO can be excessed easily relative to antibonding MO electrons, then melting point metal is higher.

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Answer 3

Question

Chapter 12, Problem 12.8A

Interpretation Introduction

(a)

Interpretation:

The picture of bands for each metal Hf, Pt, and Re should be determined.

Concept introduction:

The band theory is used to explain hardness, electrical conductivity, melting point for different metals. It can be explained as a theory related to set of MOs that have very less energy difference between them. These sets of MOs are also known as bands. Melting point of any metal depends on occupancy of both MOs, bonding and antibonding. When the electron from bonding MO can be excessed easily relative to antibonding MO electrons, then melting point metal is higher.

Interpretation Introduction

(b)

Interpretation:

The hardest metal should be determined and also, metal with highest melting point among Hf, Pt, and Re should be determined.

Concept introduction:

The band theory is used to explain hardness, electrical conductivity, melting point for different metals. It can be explained as a theory related to set of MOs that have very less energy difference between them. These sets of MOs are also known as bands. Melting point of any metal depends on occupancy of both MOs, bonding and antibonding. When the electron from bonding MO can be excessed easily relative to antibonding MO electrons, then melting point metal is higher.

Interpretation Introduction

(c)

Interpretation:

The softest metal and also, metal with lowest melting point among Hf, Pt, and Re should be determined.

Concept introduction:

The band theory is used to explain hardness, electrical conductivity, melting point for different metals. It can be explained as a theory related to set of MOs that have very less energy difference between them. These sets of MOs are also known as bands. Melting point of any metal depends on occupancy of both MOs, bonding and antibonding. When the electron from bonding MO can be excessed easily relative to antibonding MO electrons, then melting point metal is higher.

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Answer 4

Question

Chapter 12, Problem 12.8A

Interpretation Introduction

(a)

Interpretation:

The picture of bands for each metal Hf, Pt, and Re should be determined.

Concept introduction:

The band theory is used to explain hardness, electrical conductivity, melting point for different metals. It can be explained as a theory related to set of MOs that have very less energy difference between them. These sets of MOs are also known as bands. Melting point of any metal depends on occupancy of both MOs, bonding and antibonding. When the electron from bonding MO can be excessed easily relative to antibonding MO electrons, then melting point metal is higher.

Interpretation Introduction

(b)

Interpretation:

The hardest metal should be determined and also, metal with highest melting point among Hf, Pt, and Re should be determined.

Concept introduction:

The band theory is used to explain hardness, electrical conductivity, melting point for different metals. It can be explained as a theory related to set of MOs that have very less energy difference between them. These sets of MOs are also known as bands. Melting point of any metal depends on occupancy of both MOs, bonding and antibonding. When the electron from bonding MO can be excessed easily relative to antibonding MO electrons, then melting point metal is higher.

Interpretation Introduction

(c)

Interpretation:

The softest metal and also, metal with lowest melting point among Hf, Pt, and Re should be determined.

Concept introduction:

The band theory is used to explain hardness, electrical conductivity, melting point for different metals. It can be explained as a theory related to set of MOs that have very less energy difference between them. These sets of MOs are also known as bands. Melting point of any metal depends on occupancy of both MOs, bonding and antibonding. When the electron from bonding MO can be excessed easily relative to antibonding MO electrons, then melting point metal is higher.

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Answer 5

Chapter 12, Problem 12.8A

Interpretation Introduction

(a)

Interpretation:

The picture of bands for each metal Hf, Pt, and Re should be determined.

Concept introduction:

The band theory is used to explain hardness, electrical conductivity, melting point for different metals. It can be explained as a theory related to set of MOs that have very less energy difference between them. These sets of MOs are also known as bands. Melting point of any metal depends on occupancy of both MOs, bonding and antibonding. When the electron from bonding MO can be excessed easily relative to antibonding MO electrons, then melting point metal is higher.

Interpretation Introduction

(b)

Interpretation:

The hardest metal should be determined and also, metal with highest melting point among Hf, Pt, and Re should be determined.

Concept introduction:

The band theory is used to explain hardness, electrical conductivity, melting point for different metals. It can be explained as a theory related to set of MOs that have very less energy difference between them. These sets of MOs are also known as bands. Melting point of any metal depends on occupancy of both MOs, bonding and antibonding. When the electron from bonding MO can be excessed easily relative to antibonding MO electrons, then melting point metal is higher.

Interpretation Introduction

(c)

Interpretation:

The softest metal and also, metal with lowest melting point among Hf, Pt, and Re should be determined.

Concept introduction:

The band theory is used to explain hardness, electrical conductivity, melting point for different metals. It can be explained as a theory related to set of MOs that have very less energy difference between them. These sets of MOs are also known as bands. Melting point of any metal depends on occupancy of both MOs, bonding and antibonding. When the electron from bonding MO can be excessed easily relative to antibonding MO electrons, then melting point metal is higher.

Answer 6

Chapter 12, Problem 12.8A

Interpretation Introduction

(a)

Interpretation:

The picture of bands for each metal Hf, Pt, and Re should be determined.

Concept introduction:

The band theory is used to explain hardness, electrical conductivity, melting point for different metals. It can be explained as a theory related to set of MOs that have very less energy difference between them. These sets of MOs are also known as bands. Melting point of any metal depends on occupancy of both MOs, bonding and antibonding. When the electron from bonding MO can be excessed easily relative to antibonding MO electrons, then melting point metal is higher.

Answer 7

Chapter 12, Problem 12.8A

Interpretation Introduction

(a)

Interpretation:

The picture of bands for each metal Hf, Pt, and Re should be determined.

Concept introduction:

The band theory is used to explain hardness, electrical conductivity, melting point for different metals. It can be explained as a theory related to set of MOs that have very less energy difference between them. These sets of MOs are also known as bands. Melting point of any metal depends on occupancy of both MOs, bonding and antibonding. When the electron from bonding MO can be excessed easily relative to antibonding MO electrons, then melting point metal is higher.

Answer 8

Interpretation Introduction

(b)

Interpretation:

The hardest metal should be determined and also, metal with highest melting point among Hf, Pt, and Re should be determined.

Concept introduction:

The band theory is used to explain hardness, electrical conductivity, melting point for different metals. It can be explained as a theory related to set of MOs that have very less energy difference between them. These sets of MOs are also known as bands. Melting point of any metal depends on occupancy of both MOs, bonding and antibonding. When the electron from bonding MO can be excessed easily relative to antibonding MO electrons, then melting point metal is higher.

Answer 9

Interpretation Introduction

(b)

Interpretation:

The hardest metal should be determined and also, metal with highest melting point among Hf, Pt, and Re should be determined.

Concept introduction:

The band theory is used to explain hardness, electrical conductivity, melting point for different metals. It can be explained as a theory related to set of MOs that have very less energy difference between them. These sets of MOs are also known as bands. Melting point of any metal depends on occupancy of both MOs, bonding and antibonding. When the electron from bonding MO can be excessed easily relative to antibonding MO electrons, then melting point metal is higher.

Answer 10

Interpretation Introduction

(c)

Interpretation:

The softest metal and also, metal with lowest melting point among Hf, Pt, and Re should be determined.

Concept introduction:

The band theory is used to explain hardness, electrical conductivity, melting point for different metals. It can be explained as a theory related to set of MOs that have very less energy difference between them. These sets of MOs are also known as bands. Melting point of any metal depends on occupancy of both MOs, bonding and antibonding. When the electron from bonding MO can be excessed easily relative to antibonding MO electrons, then melting point metal is higher.

Answer 11

Interpretation Introduction

(c)

Interpretation:

The softest metal and also, metal with lowest melting point among Hf, Pt, and Re should be determined.

Concept introduction:

The band theory is used to explain hardness, electrical conductivity, melting point for different metals. It can be explained as a theory related to set of MOs that have very less energy difference between them. These sets of MOs are also known as bands. Melting point of any metal depends on occupancy of both MOs, bonding and antibonding. When the electron from bonding MO can be excessed easily relative to antibonding MO electrons, then melting point metal is higher.

Answer 12

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Answer 13

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Answer 15

Ch. 12 - Calcium metal crystallizes in a cubic...Ch. 12 - Polonium metal crystallizes in a simple cubic...Ch. 12 - Polonium metal crystallizes in a simple cubic...Ch. 12 - The density of a sample of metal "as measured to...Ch. 12 - Zinc sulfide crystallizes in the following cubic...Ch. 12 - Prob. 12.6A Ch. 12 - Prob. 12.7P Ch. 12 - Prob. 12.8A Ch. 12 - Prob. 12.9P Ch. 12 - Prob. 12.10A

Solution Summary: The author explains that the band theory is used to explain hardness, electrical conductivity, melting point for different metals.

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