Question 1

Which compound has the highest carbon-carbon bond strength?

Accepted Answer

HCCH, or acetylene, has a very strong triple bond between its two carbon atoms, which has a bond strength of approximately 839 kJ/mol. The other two compounds have double bonds between their carbon atoms, which have lower bond strengths. There is no information provided that suggests the bond strengths in A and B are significantly different from each other.

Question 2

Which compound has the longest carbon-carbon bond length?

Accepted Answer

The answer of Which compound has the longest carbon-carbon bond...

Question 3

Place the following in order of decreasing bond length. H-F H-I H-Br

Accepted Answer

Bond length generally increases as atomic size increases. Therefore, H-I will have the longest bond length, followed by H-Br, and then H-F. Therefore, the correct answer is choice C.

Question 4

Identify the shortest bond.

Accepted Answer

Triple covalent bonds are shorter than single and double covalent bonds because they involve more shared electrons, pulling the atoms closer together.

Question 5

Choose the best Lewis structure for NO₃⁻.

Accepted Answer

The answer of Choose the best Lewis structure for NO₃⁻. ...

Question 6

A triple covalent bond contains ________ of electrons.

Accepted Answer

A triple covalent bond involves the sharing of three pairs of electrons between two atoms.

Question 7

Choose the best Lewis structure for CH₂Cl₂.

Accepted Answer

The answer of Choose the best Lewis structure for CH₂Cl₂. ...

Question 8

Choose the best Lewis structure for NH₄⁺.

Accepted Answer

The answer of Choose the best Lewis structure for NH₄⁺. ...

Question 9

Choose the bond below that is the strongest.

Accepted Answer

The answer of Choose the bond below that is the...

Question 10

Identify the number of bonding pairs and lone pairs of electrons in water.

Accepted Answer

Water (H2O) has two hydrogen atoms each forming a single bond with the oxygen atom, resulting in two bonding pairs. The oxygen atom also has two pairs of non-bonding electrons (lone pairs), making the total two bonding pairs and two lone pairs.

Question 11

Place the following in order of increasing bond length. NO₂⁻ NO₃⁻ NO

Accepted Answer

The answer of Place the following in order of increasing...

Question 12

Choose the bond below that is the strongest.

Accepted Answer

The answer of Choose the bond below that is the...

Question 13

Choose the bond below that is the weakest.

Accepted Answer

I-I is a diatomic molecule with a nonpolar covalent bond, meaning the electrons are shared equally between the two atoms. This makes it weaker than the other options, which involve stronger ionic or polar covalent bonds.

Question 14

Identify the weakest bond.

Accepted Answer

Single covalent bonds are the weakest out of the three because they involve only one shared pair of electrons between two atoms. Double and triple covalent bonds involve two and three shared pairs of electrons, respectively, making them stronger than single bonds.

Question 15

Place the following in order of decreasing XO bond length, where "X" represents the central atom in each of the following compounds or ions: SiO₃²⁻ CO₂ CO₃²⁻

Accepted Answer

The bond length in these compounds is influenced by the size of the central atom and the presence of double or triple bonds. Silicon (Si) is larger than carbon (C), leading to a longer Si-O bond compared to C-O bonds. Between the CO compounds, the one with a triple bond (C≡O) has a shorter bond length than the one with a double bond (C=O) due to the stronger, shorter triple bond.

Question 16

A double covalent bond contains ________ of electrons.

Accepted Answer

A double covalent bond involves the sharing of two pairs of electrons between two atoms.

Question 17

Identify the strongest bond.

Accepted Answer

A triple covalent bond involves the sharing of three pairs of electrons, making it the strongest bond out of the options given.

Question 18

Place the following in order of increasing bond length. C-F C-S C-Cl

Accepted Answer

The answer of Place the following in order of increasing...

Question 19

Choose the bond below that is the weakest.

Accepted Answer

The answer of Choose the bond below that is the...

Question 20

Identify the longest bond.

Accepted Answer

The answer of Identify the longest bond.
...

Quiz 9: Chemical Bonding I: Lewis Theory

Which compound has the highest carbon-carbon bond strength?

Which compound has the longest carbon-carbon bond length?

Place the following in order of decreasing bond length. H-F H-I H-Br

Identify the shortest bond.

Choose the best Lewis structure for NO3⁻.

A triple covalent bond contains ________ of electrons.

Choose the best Lewis structure for CH2Cl2.

Choose the best Lewis structure for NH4⁺.

Choose the bond below that is the strongest.

Identify the number of bonding pairs and lone pairs of electrons in water.

Place the following in order of increasing bond length. NO2⁻ NO3⁻ NO

Choose the bond below that is the strongest.

Choose the bond below that is the weakest.

Identify the weakest bond.

Place the following in order of decreasing XO bond length, where "X" represents the central atom in each of the following compounds or ions: SiO32⁻ CO2 CO32⁻

A double covalent bond contains ________ of electrons.

Identify the strongest bond.

Place the following in order of increasing bond length. C-F C-S C-Cl

Choose the bond below that is the weakest.

Identify the longest bond.

Choose the best Lewis structure for NO₃⁻.

Choose the best Lewis structure for CH₂Cl₂.

Choose the best Lewis structure for NH₄⁺.

Place the following in order of increasing bond length. NO₂⁻ NO₃⁻ NO

Place the following in order of decreasing XO bond length, where "X" represents the central atom in each of the following compounds or ions: SiO₃²⁻ CO₂ CO₃²⁻