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Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Mechanistic steps involving bond-breaking can occur with homolytic cleavage or heterolytic cleavage. Identify what type of cleavage is occurring in the following reaction.

 

  1. A) heterolytic cleavage
  2. B) homolytic cleavage
  3. C) Neither homolytic or heterolytic cleavage
  4. D) This is a bond making step
The image illustrates an acid-base reaction mechanism. 

### Top Reactants:

1. **Left:** Acetic acid molecule, depicted with a carbonyl group (C=O) and a hydroxyl group (O-H) shown with electron dots around the oxygen atom.
2. **Right:** Hydroxide ion (OH⁻), where the oxygen is shown with a full octet of electron dots and a negative charge in a circle.

### Arrow:

A downward-pointing arrow indicates the progression of the chemical reaction from reactants to products.

### Bottom Products:

1. **Left:** Acetate ion (CH₃COO⁻), shown with the same carbonyl group. The hydroxyl hydrogen is no longer present, and the oxygen carries a negative charge with a full octet.
2. **Right:** Water molecule (H₂O), with two hydrogen atoms bonded to oxygen, each bond shown with electron dots around the oxygen.

This diagram represents the deprotonation of acetic acid by a hydroxide ion, leading to the formation of acetate and water.
Transcribed Image Text:The image illustrates an acid-base reaction mechanism. ### Top Reactants: 1. **Left:** Acetic acid molecule, depicted with a carbonyl group (C=O) and a hydroxyl group (O-H) shown with electron dots around the oxygen atom. 2. **Right:** Hydroxide ion (OH⁻), where the oxygen is shown with a full octet of electron dots and a negative charge in a circle. ### Arrow: A downward-pointing arrow indicates the progression of the chemical reaction from reactants to products. ### Bottom Products: 1. **Left:** Acetate ion (CH₃COO⁻), shown with the same carbonyl group. The hydroxyl hydrogen is no longer present, and the oxygen carries a negative charge with a full octet. 2. **Right:** Water molecule (H₂O), with two hydrogen atoms bonded to oxygen, each bond shown with electron dots around the oxygen. This diagram represents the deprotonation of acetic acid by a hydroxide ion, leading to the formation of acetate and water.
Expert Solution
Step 1

Homolytic cleavage involves symmetrical cleavage of bonds that means each atom gets one unpaired electrons and resulting species are free radicals.

Heterolytic cleavage involves un-symmetrical cleavage of bonds that means onee of the bonded atom gets paired electrons and gets negative charge and resulting species are charged particles(cation and anion)

 

 

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