Draw curved arrows to illustrate the bond-making and bond-breaking processes. Draw all missing reactants and/or products in the appropriate boxes by placing atoms on the canvas and connecting them with bonds arrows should start on an atom or a bond and should end on an atom, bond, or location where a new bond should be created. NN 20+1 [1] H₂C H EXP. CONT 1 CH₂ H-BH₂ H₂C BH₂ H UZO C N S CI Br I P F

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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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### Reaction Mechanism and Arrow-Pushing Practice

#### Instructions:
1. **Curved Arrows:** Draw curved arrows to illustrate bond-making and bond-breaking processes.
2. **Missing Reactants or Products:** Complete the reaction by placing missing atoms in the appropriate boxes and connecting them with bonds. Arrows should start on an atom or bond and end on an atom, bond, or location where a new bond is created.

#### Detailed Description of the Reaction Diagram:

- **Reactants Box (Left):**
  - The structure begins with a molecule of bromoethane: \( \text{H}_3\text{C}-\text{CH}_2-\text{Br} \).
  - A curved arrow indicates the movement of electron pairs. The arrow starts at the bond between the carbon (CH₂) and bromine (Br), indicating the breaking of this bond.

- **Transition to Products Box (Right):**
  - An intermediate is formed: \( \text{H}_3\text{C}-\text{CH}_2^+ \) (a carbocation with a positive charge on the CH₂).
  - Bromine departs as a bromide ion (\( \text{:Br}^- \)), shown separately with lone pairs of electrons.
  
#### Tool Menu:
- The toolbar on the side includes various bond and element options to use when editing or creating reaction mechanisms.

By practicing with these diagrams, students can gain a better understanding of reaction mechanisms, specifically the movements of electrons during bond breaking and formation.
Transcribed Image Text:### Reaction Mechanism and Arrow-Pushing Practice #### Instructions: 1. **Curved Arrows:** Draw curved arrows to illustrate bond-making and bond-breaking processes. 2. **Missing Reactants or Products:** Complete the reaction by placing missing atoms in the appropriate boxes and connecting them with bonds. Arrows should start on an atom or bond and end on an atom, bond, or location where a new bond is created. #### Detailed Description of the Reaction Diagram: - **Reactants Box (Left):** - The structure begins with a molecule of bromoethane: \( \text{H}_3\text{C}-\text{CH}_2-\text{Br} \). - A curved arrow indicates the movement of electron pairs. The arrow starts at the bond between the carbon (CH₂) and bromine (Br), indicating the breaking of this bond. - **Transition to Products Box (Right):** - An intermediate is formed: \( \text{H}_3\text{C}-\text{CH}_2^+ \) (a carbocation with a positive charge on the CH₂). - Bromine departs as a bromide ion (\( \text{:Br}^- \)), shown separately with lone pairs of electrons. #### Tool Menu: - The toolbar on the side includes various bond and element options to use when editing or creating reaction mechanisms. By practicing with these diagrams, students can gain a better understanding of reaction mechanisms, specifically the movements of electrons during bond breaking and formation.
The image shows a chemical reaction diagram focused on illustrating the bond-making and bond-breaking processes. 

**Instructions:**

- **Header:** "Draw curved arrows to illustrate the bond-making and bond-breaking processes."
  
- **Sub-header:** "Draw all missing reactants and/or products in the appropriate boxes by placing atoms on the canvas and connecting them with bonds. Arrows should start on an atom or a bond and should end on an atom, bond, or location where a new bond should be created."

**Diagram Details:**

- **Reactants Box (Left):**
  - Contains a molecule showing an alkene group (double bond) between two carbon atoms.
  - The molecule is depicted as H₃C-CH=CH₂.
  - A borane group (BH₂) is attached to the alkene via a hydrogen atom.
  - A curved arrow is shown starting from the double bond towards the hydrogen atom, indicating the shift of electrons.

- **Products Box (Right):**
  - Shows the result of the reaction with the molecule as H₃C-CH₂-CH₂-BH₂.
  - It indicates the addition of BH₂ across the former double bond.

**Sidebar Elements:**
- Elements listed: 
  - **H (Hydrogen)**
  - **C (Carbon)**
  - **N (Nitrogen)**
  - **O (Oxygen)**
  - **S (Sulfur)**
  - **Cl (Chlorine)**
  - **Br (Bromine)**
  - **I (Iodine)**
  - **P (Phosphorus)**
  - **F (Fluorine)**

**Toolbar Symbols:**
- Various tools for drawing structures, bonds, and manipulating the chemical diagrams, such as zoom, rotation, and selection tools.
Transcribed Image Text:The image shows a chemical reaction diagram focused on illustrating the bond-making and bond-breaking processes. **Instructions:** - **Header:** "Draw curved arrows to illustrate the bond-making and bond-breaking processes." - **Sub-header:** "Draw all missing reactants and/or products in the appropriate boxes by placing atoms on the canvas and connecting them with bonds. Arrows should start on an atom or a bond and should end on an atom, bond, or location where a new bond should be created." **Diagram Details:** - **Reactants Box (Left):** - Contains a molecule showing an alkene group (double bond) between two carbon atoms. - The molecule is depicted as H₃C-CH=CH₂. - A borane group (BH₂) is attached to the alkene via a hydrogen atom. - A curved arrow is shown starting from the double bond towards the hydrogen atom, indicating the shift of electrons. - **Products Box (Right):** - Shows the result of the reaction with the molecule as H₃C-CH₂-CH₂-BH₂. - It indicates the addition of BH₂ across the former double bond. **Sidebar Elements:** - Elements listed: - **H (Hydrogen)** - **C (Carbon)** - **N (Nitrogen)** - **O (Oxygen)** - **S (Sulfur)** - **Cl (Chlorine)** - **Br (Bromine)** - **I (Iodine)** - **P (Phosphorus)** - **F (Fluorine)** **Toolbar Symbols:** - Various tools for drawing structures, bonds, and manipulating the chemical diagrams, such as zoom, rotation, and selection tools.
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