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문제 47b
Each pair of structures represents two valid resonance structures. Use the arrow-pushing formalism to justify the formation of the one on the left from the one on the right.
(b)
문제 48a
Draw the resonance structure that would result from the indicated movement of electrons.
(a)
문제 49a
For each of the molecules shown, do the following:
(i) Identify all pushable pairs.
(ii) Identify all places where electrons can be pushed.
(iii) Draw one valid resonance structure.
(a)
문제 50
i) Which of the following resonance structures represents the 'actual' structure of the molecule shown? (ii) Which contributes more to the resonance hybrid? (iii) Why?
(a)
(b)
(c)
문제 51
To which atom of formaldehyde would you expect H+ to add?
문제 52
Which atoms in the enol ether would you expect to react with Br⁺ ?
문제 53
Assign the hybridization of the nitrogen in each resonance structure of acetamide.
문제 55c
How many valence electrons does each of the following contribute to a Lewis structure?
(c) B
문제 55g
How many valence electrons does each of the following contribute to a Lewis structure?
(g) S
문제 55i
How many valence electrons does each of the following contribute to a Lewis structure?
(i) Cl
문제 55j
How many valence electrons does each of the following contribute to a Lewis structure?
(j) Al
문제 55l
How many valence electrons does each of the following contribute to a Lewis structure?
(l) ―1 charge
문제 58b
Show how the Lewis dot structure for each of the following atoms would overlap to form a single bond.
(b) C and O
문제 59b
Which atom in each pair would you expect to be the central atom in a Lewis structure?
(b) C vs. O
문제 59d
Which atom in each pair would you expect to be the central atom in a Lewis structure?
(d) C vs. N
문제 59f
Which atom in each pair would you expect to be the central atom in a Lewis structure?
(f) C vs. F
문제 60a
Given the atoms involved and the number of valence electrons remaining, complete the Lewis structure by placing bonds between atoms such that each has a full octet.
(a)
문제 60d
Given the atoms involved and the number of valence electrons remaining, complete the Lewis structure by placing bonds between atoms such that each has a full octet.
(d)
문제 60e
Given the atoms involved and the number of valence electrons remaining, complete the Lewis structure by placing bonds between atoms such that each has a full octet.
(e)
문제 61a
By moving an electron pair, draw a better Lewis structure that minimizes formal charges.
(a)
문제 61b
By moving an electron pair, draw a better Lewis structure that minimizes formal charges.
(b)
문제 62j
Draw the Lewis structure for the following molecular formulas.
(j) H2SO4
문제 62l
Draw the Lewis structure for the following molecular formulas.
(l) SO42-
문제 62u
Draw the Lewis structure for the following molecular formulas.
(u) NH4+
문제 62v
Draw the Lewis structure for the following molecular formulas.
(v) CH5N
문제 63a
In the following molecules, identify all pushable electron pairs.
(a)
문제 64b
Two resonance structures are shown for each molecule. Use the arrow-pushing formalism to represent the electron flow from the structure on the left to the one on the right.
(b)
문제 64d
Two resonance structures are shown for each molecule. Use the arrow-pushing formalism to represent the electron flow from the structure on the left to the one on the right.
(d)
문제 64e
Two resonance structures are shown for each molecule. Use the arrow-pushing formalism to represent the electron flow from the structure on the left to the one on the right.
(e)
문제 64f
Two resonance structures are shown for each molecule. Use the arrow-pushing formalism to represent the electron flow from the structure on the left to the one on the right.
(f)
