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Lewis Structures: Equivalent Resonance Structures

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Wize University Chemistry Textbook > Lewis Structures & Resonance Structures

Resonance Structures

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There are three, equivalent resonance structures one can draw for the “best” Lewis diagram for the polyatomic ion SO32-. The resonance hybrid for SO32- is shown below.




a) Use the resonance hybrid above to help you draw the three resonance structures in the boxes below. On resonance structures 1 and 2 draw curved arrows that show how the two structures could be inter-converted with one another by moving valence electrons.



b) State the bond orders for each sulfur oxygen bond in both the hybrid and resonance structure 3.


c) What do the differences in bond orders imply about the relative bond lengths and strengths?
More Resonance Structures Questions:
Acids and Bases: Acids and Salts
Draw the correct lewis structure of HClO3 and draw all resonance structures.
Lewis Structure: Resonance
Draw all possible resonance structures for the tetrathiooxalate anion, [C2S4]2-
Show all non-zero formal charges on the appropriate atoms. Show all lone pairs.
Lewis Structures: Non-equivalent Resonance Structures
There are three resonance structures one can draw where the octet rule is satisfied for all the atoms of the polyatomic ions SCN–.
a) Draw the three Resonance Structures below and make sure to include curved arrows that show how one could go from Resonance Structure 1 to 2 and Resonance Structure 2 to 3
b) Which of the structure(s) would you identify to be the best Lewis structure(s)? Explain your reasoning.
Lewis Structures: Resonance
Are the following structures isomers or resonance forms?
Lewis Structures: Resonance
Are the following structures isomers or resonance forms?
Lewis Structures: Resonance
Starting from the Lewis structure below, draw all valid resonance structures. Show all bonds, lone pairs, and non-zero formal charges.
Lewis Structures: Resonance
Starting from the Lewis structure below, complete two other valid resonance structures. Show all bonds, lone pairs, and non-zero formal charges.
Lewis Structures: Resonance
Starting from the Lewis structure below, complete two other valid resonance structures. Show all bonds, lone pairs, and non-zero formal charges.
Lewis Structures: Resonance
Starting from the Lewis structure below, complete two other valid resonance structures. Show all bonds, lone pairs, and non-zero formal charges.
Lewis Structures: Resonance
Starting from the Lewis structure below, complete two other valid resonance structures. Show all bonds, lone pairs, and non-zero formal charges.
Lewis Structures: Resonance
Starting from the Lewis structure below, complete two other valid resonance structures. Show all bonds, lone pairs, and non-zero formal charges.
Lewis Structures: Resonance
Starting from the Lewis structure below, complete two other valid resonance structures. Show all bonds, lone pairs, and non-zero formal charges.
Lewis Structures: Resonance
Inspect the following incomplete resonance structures, and identify the INCORRECT statement about the
nitrous oxide molecule.
Lewis Structures: Resonance
Draw all of the most stable resonance structures for ClO4-.
Lewis Structures: Resonance
For which of the following molecules do we need to invoke resonance to effectively describing the bonding?
Lewis Dot Structure, Resonance
Choose the most stable resonance form of carbon monoxide.
Resonance
In the resonance hybrid structure of PO43–, the net charge on each O atom is:
Resonance Structure, Oxidation State
Choose the correct statement:
Lewis Bonding Model
Draw the correct Lewis structure of ClO3- and all resonance structures.
Draw Lewis structures, including resonance structures where applicable, for the following compound: XeF6
Lewis Structures: Resonance
Draw all reasonable resonance structures for the following compounds.
a) PS2Cl2-
b) SO42-
Lewis Structures: Resonance
Starting from the Lewis structure below, complete two other valid resonance structures. Show all bonds, lone pairs, and non-zero formal charges.
Lewis Structure: Resonance
Diazomethane is a poisonous, explosive yellow gas at room temperature!
Starting with the Lewis structure below, show two other valid resonance structures. Be sure to show all bonds, lone pairs, and formal charges.
Lewis Structure: Resonance
Draw all possible resonance structures for the tetrathiooxalate anion, [C2S4]2-
Show all non-zero formal charges on the appropriate atoms. Show all lone pairs.
Lewis Bonding Model
Draw the correct Lewis structure of ClO3- and all resonance structures to answer the following questions.
Resonance and Lewis dot structure
Choose the most stable resonance form of carbon monoxide
Lewis Dot Structure
Draw Lewis dot structures and more stable resonance structures (wherever applicable) of the following:
1. NO2
2. CH3OH
Acids and Bases: Acids and Salts
Draw the correct lewis structure of chloric acid and draw all resonance structures.
Lewis Structure: Electron Movement in Resonance Structures
Complete the resonance structures by drawing the curly arrows required to convert between one resonance structure to another. Circle the resonance structure that is lower in energy.
ClO2-:
Lewis Structure: Resonance Structures
How many Resonance structures are there for the sulfite ion?
Resonance Structures
Draw all the resonance structures of CO2Cl- to answer the following questions.
Organic Compounds
Draw all the resonance structures of aniline (NH2C6H5). The incomplete Lewis structure of aniline is shown below.
Resonance Structures
Draw all the resonance structures of CO2Cl- to answer the following questions.
Resonance Structures
Draw all resonance structures for the carbonate ion: CO32-.
Lewis Structures: Resonance
Inspect the following incomplete resonance structures, and identify the INCORRECT statement about the
nitrous oxide molecule.
Lewis Structure: Phosphate Resonance Structures
Draw all reasonable resonance structures for PO43-.
Lewis Structures: Resonance
Show all of the most stable resonance structures for CO32-.
Lewis Structures: Resonance
Draw the most stable resonance structures for ClO2-.
Lewis Structures: Resonance
Draw all of the most stable resonance structures for ClO4-.
Lewis Structures: Resonance
Draw the most stable resonance structures for NO2-.
Lewis Structures: Resonance
Draw all the most stable resonance structures for CO32-.
Lewis Structure: Resonance
Draw the most stable resonance structures for SO32-.
Lewis Structures: Testosterone resonance structures
Testosterone, an anabolic steroid, is the principle male sex hormone and is found in humans and other vertebrates. Testosterone is present in both males and females however the concentration is much higher (7-8 times) in males. The skeletal structure of testosterone is shown below. Complete the Lewis Structure and answer the following questions.
How many reasonable resonance structures does testosterone have?
Additional Resonance Structures Questions
1) Draw all reasonable resonance structures for the following compounds.
a) NO3-
b) SO32-
Which of the following resonances structures best describes NO3-
Lewis Structures: Resonance Acid/Base
The hydrogen atoms on carbon 3 of penta-2,4-dione (shown in red) are surprisingly acidic for a C-H bond. This is because the anion produced after deprotonation is resonance stabilized. Which resonance structure(s) below would be best for the conjugate base?
Lewis Structures: Resonance
Which of the following molecules has multiple resonance forms?
Lewis Structure: Azide Resonance Structures
Draw all reasonable resonance structures for the azide Ion, N3-, choose the most stable structure and explain your choice. (Hint: Azide is a linear molecule.)
Lewis Structures: Resonance
For which of the following molecules do we need to invoke resonance to effectively describe the bonding?
Lewis Structures: Resonance
For which of the following molecules is resonance necessary to describe the bonding?
Complete the skeleton given below to give the “best” Lewis diagram for a molecule of H2CCHCH2C(O)OH, then identify which of the statements below is false?
A. There are 8 electrons not involved in bonding.
B. There are 11 sigma bonds.
Which of the following gives a pair of valid Lewis structures that are resonance structures of each other?
Lewis Sructures: Resonance
Which of the following are resonance structures?
A. i only
B. ii only
Lewis Structure: Resonance
How many resonance structures does NO3- have? What is the orbital hybridization of the nitrogen atom, and what is its molecular shape?
Lewis Structures: Resonance

Lewis Structures: Non-equivalent Resonance Structures
There are three resonance structures one can draw where the octet rule is satisfied for all the atoms of the polyatomic ions SCN–. These three resonance structures are shown below.
a) On the Resonance Structures draw curved arrows that show how one could go from Resonance Structure 1 to 2 and Resonance Structure 2 to 3.
b) Which of the structure(s) would you identify to be the best Lewis structure(s)? Explain your reasoning.