Question 1

To absorb infrared radiation, a molecule must have _______.

Accepted Answer

Infrared radiation is absorbed by molecules with specific vibrational modes, which result in a change in dipole moment. Therefore, a molecule must have a vibrational motion that causes a change in dipole moment to absorb infrared radiation.

Question 2

The formal charge on the sulfur atom in the Lewis structure for sulfur dioxide (SO₂) that minimizes the formal charges is _______.

Accepted Answer

The formal charge on the sulfur atom in the optimal Lewis structure for sulfur dioxide (SO2) is 0. This is because sulfur shares two double bonds with two oxygen atoms, giving it a total of six shared electrons in addition to its two non-bonded electrons, which matches sulfur's typical valence electron count of six.

Question 3

What is the chemical formula for digermanium hexahydride?

Accepted Answer

The answer of What is the chemical formula for digermanium...

Question 4

What are the systematic names for PH₃ and P₄O₁₀?

Accepted Answer

The answer of What are the systematic names for PH₃...

Question 5

What is the chemical formula for manganese (IV) nitride?

Accepted Answer

The answer of What is the chemical formula for manganese...

Question 6

What is the correct name for B₂O₃?

Accepted Answer

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Question 7

Which statement below regarding vibrating bonds and the greenhouse effect is FALSE?

Accepted Answer

The false statement is E) because multiple atmospheric molecules, not just one specific molecule, interact with infrared radiation. This includes carbon dioxide (CO2), methane (CH4), water vapor (H2O), and others, all of which play a role in the greenhouse effect by absorbing and re-emitting infrared radiation.

Question 8

What are the names for the following acids: HIO₃, HBrO₂, H₂SeO₄, and HBrO?

Accepted Answer

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Question 9

What is the correct name for (FeNO₂)₃?

Accepted Answer

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Question 10

Calculate the electrical potential energy in kilojoules per mole between the aluminum ion
(radius = 67.5 pm) and the oxide ion (radius = 126 pm).Would you expect the electrical potential energy between the aluminum ion and the sulfide ion to be larger or smaller than that of aluminum and oxide?

Accepted Answer

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Question 11

Rank the following ionic compounds in order of increasing lattice energy the (largest lattice energy is the most negative): MgCl₂, NaCl, KCl, MgO.Explain your ranking.

Accepted Answer

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Question 12

Rank the following ionic compounds in order of increasing lattice energy (the largest lattice energy is the most negative): MgF₂, MgCl₂, MgBr₂, MgI₂.Explain your ranking.

Accepted Answer

The answer of Rank the following ionic compounds in order...

Question 13

Which molecule below CANNOT absorb infrared radiation?

Accepted Answer

N2 is a homonuclear diatomic molecule, which means it has no dipole moment. As a result, it cannot absorb infrared radiation, which is a type of electromagnetic radiation that interacts with the dipole moments of molecules.

Question 14

What is the chemical formula for ammonium sulfate?

Accepted Answer

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Question 15

What is the correct name for VO₂?

Accepted Answer

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Question 16

Which atmospheric gas below could NOT contribute to the greenhouse effect?

Accepted Answer

Argon (Ar) does not contribute to the greenhouse effect because it is a noble gas with very stable chemical properties, making it non-reactive and unable to absorb and emit infrared radiation like greenhouse gases do.

Question 17

Which molecule below contains an exception to the octet rule?

Accepted Answer

NO₂ is an exception to the octet rule because the nitrogen atom has an odd number of electrons, resulting in an unpaired electron and an incomplete octet.

Question 18

Not all the bond vibrations of carbon dioxide result in the absorption and emission of infrared radiation because _______.

Accepted Answer

Only some of the vibrations in carbon dioxide lead to a change in the dipole moment, which is necessary for the absorption and emission of infrared radiation.

Question 19

What are the names for the following acids: HBr, HI, H₂S, and H₂Se?

Accepted Answer

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Question 20

Which molecule has a stretching vibration that is NOT infrared active?

Accepted Answer

H₂ is a homonuclear diatomic molecule with no change in dipole moment during vibration, making it infrared inactive.

Quiz 4: Chemical Bonding Understanding Climate Change

To absorb infrared radiation, a molecule must have _______.

The formal charge on the sulfur atom in the Lewis structure for sulfur dioxide (SO2) that minimizes the formal charges is _______.

What is the chemical formula for digermanium hexahydride?

What are the systematic names for PH3 and P4O10?

What is the chemical formula for manganese (IV) nitride?

What is the correct name for B2O3?

Which statement below regarding vibrating bonds and the greenhouse effect is FALSE?

What are the names for the following acids: HIO3, HBrO2, H2SeO4, and HBrO?

What is the correct name for (FeNO2)3?

Calculate the electrical potential energy in kilojoules per mole between the aluminum ion (radius = 67.5 pm) and the oxide ion (radius = 126 pm).Would you expect the electrical potential energy between the aluminum ion and the sulfide ion to be larger or smaller than that of aluminum and oxide?

Rank the following ionic compounds in order of increasing lattice energy the (largest lattice energy is the most negative): MgCl2, NaCl, KCl, MgO.Explain your ranking.

Rank the following ionic compounds in order of increasing lattice energy (the largest lattice energy is the most negative): MgF2, MgCl2, MgBr2, MgI2.Explain your ranking.