Attempt 1 Draw curved arrows to illustrate the Ensted acid-base reaction shown. H3C H3C C=CH2 + H-Br: +C- CH2 + :Br H3C H3C Draw the curved arrows for the forward reaction. Draw the curved arrows for the reverse reaction. H,C H,C c= CH, H - Br : H,C H,C :

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Chapter1: Chemical Foundations
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### Bronsted Acid-Base Reaction: Curved Arrows Illustration

#### Reaction Overview
The image depicts a Bronsted acid-base reaction. The primary reaction involves the interaction between a molecule with a C=C double bond and HBr. The result is a shift that creates a new carbon-hydrogen bond and a bromide ion.

#### Forward Reaction
- **Reactants:** 
  - A molecule with a double bond adjacent to a -CH2 group.
  - Hydrogen bromide (H-Br) with a lone pair on the bromine atom.
- **Curved Arrows:**
  - The first curved arrow shows the movement of electrons from the double bond to the H of H-Br, indicating new bond formation.
  - The second arrow indicates the breaking of the H-Br bond, directing the electrons onto the Br atom. This creates a bromide ion.

#### Reverse Reaction
- **Products:**
  - A molecule with a new C-H bond and a detached Br^- ion.
- **Curved Arrows:**
  - The lone pair on Br^- forms a bond with the carbon atom.
  - A reverse electron movement from the new C-H bond back to the adjacent atom indicates bond breaking, reforming the double bond.

This reaction is a typical example of how curved arrows are used in organic chemistry to represent electron flow during reactions, crucial for understanding reaction mechanisms.
Transcribed Image Text:### Bronsted Acid-Base Reaction: Curved Arrows Illustration #### Reaction Overview The image depicts a Bronsted acid-base reaction. The primary reaction involves the interaction between a molecule with a C=C double bond and HBr. The result is a shift that creates a new carbon-hydrogen bond and a bromide ion. #### Forward Reaction - **Reactants:** - A molecule with a double bond adjacent to a -CH2 group. - Hydrogen bromide (H-Br) with a lone pair on the bromine atom. - **Curved Arrows:** - The first curved arrow shows the movement of electrons from the double bond to the H of H-Br, indicating new bond formation. - The second arrow indicates the breaking of the H-Br bond, directing the electrons onto the Br atom. This creates a bromide ion. #### Reverse Reaction - **Products:** - A molecule with a new C-H bond and a detached Br^- ion. - **Curved Arrows:** - The lone pair on Br^- forms a bond with the carbon atom. - A reverse electron movement from the new C-H bond back to the adjacent atom indicates bond breaking, reforming the double bond. This reaction is a typical example of how curved arrows are used in organic chemistry to represent electron flow during reactions, crucial for understanding reaction mechanisms.
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