Model 2: Resonance Structures of Acrylic Acid :0: HC || CH₂ 3 - HC HC :0: CH₂ 5 OH HC :0:0 CH₂ 6 Questions: 4. Consider the resonance structures of acrylic acid shown in Model 2: (a) Is the total charge for each resonance form the same? (Circle one) yes / no. Is the total number of electrons for each resonance form the same? (Circle one) yes / no. (b) Have any single bonds been broken to form another resonance form? (Circle one) yes / no. (d) Are any atoms bonded to a different atom in other resonance forms? (Circle one) yes / no. (e) Do all atoms have eight electrons or less? (Circle one) yes / no.

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Model 2: Resonance Structures of Acrylic Acid
:0:0
HC
(c)
(d)
:D:
CH₂
(c)
CH₂
HC
Questions:
4. Consider the resonance structures of acrylic acid shown in Model 2:
(a) Is the total charge for each resonance form the same? (Circle one) yes / no.
Is the total number of electrons for each resonance form the same?
(Circle one) yes / no.
(b)
Have any single bonds been broken to form another resonance form?
(Circle one) yes / no.
Are any atoms bonded to a different atom in other resonance forms?
(Circle one) yes / no.
(e)
Do all atoms have eight electrons or less? (Circle one) yes / no.
CH₂
(b) What does the curved arrow on structure 4 show (be specific)?
HC
+ CH₂ 5
5. Curved arrows are used to show movement of electron pairs. Consider the curved arrows
depicted on the structures in Model 2:
(a) What does the curved arrow on structure 3 show (be specific)?
5
What do the curved arrows on structure 5 show (be specific)?
OH
HC
(d)
In converting structure 5 to 6, it is necessary to move two pairs of electrons. Draw the
resonance structure that would form if only the one lone pair of electrons on oxygen
were moved (indicated by the arrow below-remember to only move the pair of electrons
shown by the arrow). Describe why this is not a valid resonance form.
POGIL
www.POSIL.ORG
Capr 2015
6
Transcribed Image Text:Model 2: Resonance Structures of Acrylic Acid :0:0 HC (c) (d) :D: CH₂ (c) CH₂ HC Questions: 4. Consider the resonance structures of acrylic acid shown in Model 2: (a) Is the total charge for each resonance form the same? (Circle one) yes / no. Is the total number of electrons for each resonance form the same? (Circle one) yes / no. (b) Have any single bonds been broken to form another resonance form? (Circle one) yes / no. Are any atoms bonded to a different atom in other resonance forms? (Circle one) yes / no. (e) Do all atoms have eight electrons or less? (Circle one) yes / no. CH₂ (b) What does the curved arrow on structure 4 show (be specific)? HC + CH₂ 5 5. Curved arrows are used to show movement of electron pairs. Consider the curved arrows depicted on the structures in Model 2: (a) What does the curved arrow on structure 3 show (be specific)? 5 What do the curved arrows on structure 5 show (be specific)? OH HC (d) In converting structure 5 to 6, it is necessary to move two pairs of electrons. Draw the resonance structure that would form if only the one lone pair of electrons on oxygen were moved (indicated by the arrow below-remember to only move the pair of electrons shown by the arrow). Describe why this is not a valid resonance form. POGIL www.POSIL.ORG Capr 2015 6
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