Chemistry
Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Using Molecular Structure To Predict Equilibrium
Equilibrium does not always imply an equal presence of reactants and products. This signifies that the reaction reaches a point when reactant and product quantities remain constant as the rate of forward and backward reaction is the same. Molecular struc…
Question
**Chapter 2 Practice: Formal Charges in Resonance Structures** **Exercise 2.9:** **Instruction:** Choose the resonance structure that results from the arrow pushing scheme below: **Diagram Description:** The initial structure shows a benzene ring with an attached hydroxyl group (-OH). A set of curved arrows indicates electron movement: - One arrow points from a lone pair on the oxygen towards the bond between the oxygen and hydrogen (indicating hydrogen leaving). - Another arrow points from the bond between a carbon in the ring and an adjacent carbon (on the same side as the hydroxyl group) to the adjacent carbon. **Options:** Four choices show different resonance structures of the given molecule: 1. The first option positions the negative charge (formed by the lone pair) on the oxygen after the hydrogen leaves. 2. The second option depicts the benzene ring with an additional double bond adjacent to the hydroxyl group. 3. The third option shows the negative charge on a carbon atom in the benzene ring. 4. The fourth option maintains the initial structure, with no change except electron distribution. **Action:** Select the resonance structure that best represents the outcome from the electron movement denoted by the arrows. **Note:** This exercise focuses on understanding how electrons are redistributed during resonance, impacting formal charges and stability.
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Transcribed Image Text:**Chapter 2 Practice: Formal Charges in Resonance Structures** **Exercise 2.9:** **Instruction:** Choose the resonance structure that results from the arrow pushing scheme below: **Diagram Description:** The initial structure shows a benzene ring with an attached hydroxyl group (-OH). A set of curved arrows indicates electron movement: - One arrow points from a lone pair on the oxygen towards the bond between the oxygen and hydrogen (indicating hydrogen leaving). - Another arrow points from the bond between a carbon in the ring and an adjacent carbon (on the same side as the hydroxyl group) to the adjacent carbon. **Options:** Four choices show different resonance structures of the given molecule: 1. The first option positions the negative charge (formed by the lone pair) on the oxygen after the hydrogen leaves. 2. The second option depicts the benzene ring with an additional double bond adjacent to the hydroxyl group. 3. The third option shows the negative charge on a carbon atom in the benzene ring. 4. The fourth option maintains the initial structure, with no change except electron distribution. **Action:** Select the resonance structure that best represents the outcome from the electron movement denoted by the arrows. **Note:** This exercise focuses on understanding how electrons are redistributed during resonance, impacting formal charges and stability.
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