Identify each reactant as a Lewis acid or a Lewis base, and then draw the products that result from the following coordination step. Be sure to inclu all lone pairs of electrons and formal charges. :0:

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Chapter1: Chemical Foundations
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**Instruction:**

Identify each reactant as a Lewis acid or a Lewis base, and then draw the products that result from the following coordination step. Be sure to include all lone pairs of electrons and formal charges.

**Diagram Explanation:**

In the image, there is a reaction involving two main species:

1. **Acetone Molecule:**
   - Structure: The acetone is shown with a central carbon atom double-bonded to an oxygen (carbonyl group) and singly bonded to two CH₃ groups.
   - Lone Pairs: The oxygen atom in the carbonyl group has two lone pairs of electrons.
   - Role: The oxygen atom of the acetone acts as a Lewis base, as it donates an electron pair.

2. **Boron Trifluoride (BF₃):**
   - Structure: Boron is at the center bonded to three fluorine atoms.
   - Nature: Boron in BF₃ has an incomplete octet, making it electron-deficient.
   - Role: BF₃ acts as a Lewis acid, as it accepts an electron pair.

**Reaction Description:**

- The reaction shows an arrow indicating the movement of a lone pair from the oxygen atom of acetone to the boron atom in boron trifluoride.
- This is a typical coordination step where the Lewis base (oxygen of acetone) donates a pair of electrons to the Lewis acid (boron in BF₃).

Following the coordination, a complex is formed in which the oxygen-boron bond is created. The lone pairs and formal charges should be carefully represented to show the completed octet for boron in the final structure.
Transcribed Image Text:**Instruction:** Identify each reactant as a Lewis acid or a Lewis base, and then draw the products that result from the following coordination step. Be sure to include all lone pairs of electrons and formal charges. **Diagram Explanation:** In the image, there is a reaction involving two main species: 1. **Acetone Molecule:** - Structure: The acetone is shown with a central carbon atom double-bonded to an oxygen (carbonyl group) and singly bonded to two CH₃ groups. - Lone Pairs: The oxygen atom in the carbonyl group has two lone pairs of electrons. - Role: The oxygen atom of the acetone acts as a Lewis base, as it donates an electron pair. 2. **Boron Trifluoride (BF₃):** - Structure: Boron is at the center bonded to three fluorine atoms. - Nature: Boron in BF₃ has an incomplete octet, making it electron-deficient. - Role: BF₃ acts as a Lewis acid, as it accepts an electron pair. **Reaction Description:** - The reaction shows an arrow indicating the movement of a lone pair from the oxygen atom of acetone to the boron atom in boron trifluoride. - This is a typical coordination step where the Lewis base (oxygen of acetone) donates a pair of electrons to the Lewis acid (boron in BF₃). Following the coordination, a complex is formed in which the oxygen-boron bond is created. The lone pairs and formal charges should be carefully represented to show the completed octet for boron in the final structure.
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