Decide wnether each row is a set of resonance structures for a single molecule and select "yes" or "no" in the last column. structures resonance structures? O yes O no O yes O no O yes O no O yes O no

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Chapter1: Chemical Foundations
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**Activity: Identifying Resonance Structures**

**Instructions:**
Decide whether each row is a set of resonance structures for a single molecule and select "yes" or "no" in the last column.

---

**1. Row 1:**

- **Structures:**
  - The first structure shows a five-membered ring (cyclopentadienyl) with two adjacent double bonds and a negative charge on an external bond.
  - The second structure also shows a five-membered ring (cyclopentadiene) with a negative charge on the same external bond but no double bonds within the ring.

- **Resonance Structures?:**
  - Options: 
    - ☐ yes
    - ☐ no
   
---

**2. Row 2:**

- **Structures:**
  - The first structure represents a butanone-like molecule with a carbonyl group (C=O) and a negative charge on the adjacent carbon.
  - The second structure is similar but with the negative charge on the oxygen within the carbonyl group.

- **Resonance Structures?:**
  - Options:
    - ☐ yes
    - ☐ no

---

**3. Row 3:**

- **Structures:**
  - The first structure is a benzene ring with a positive charge next to a single bond outside the ring.
  - The second structure is similar but displays the positive charge inside the ring, positioned near alternating double bonds.

- **Resonance Structures?:**
  - Options:
    - ☐ yes
    - ☐ no

---

**4. Row 4:**

- **Structures:**
  - The first structure is identical to the first structure of Row 2, showing a carbonyl group with a negative charge on the adjacent carbon.
  - The second structure shifts the negative charge to the oxygen in the carbonyl group, similar to the second structure of Row 2, but with a positive charge on the carbon.

- **Resonance Structures?:**
  - Options:
    - ☐ yes
    - ☐ no

---

**Note:** 
Visualize each row to determine if the chemical structures can exist as resonance forms of each other, which involve the delocalization of electrons across the molecule without breaking any sigma bonds.
Transcribed Image Text:**Activity: Identifying Resonance Structures** **Instructions:** Decide whether each row is a set of resonance structures for a single molecule and select "yes" or "no" in the last column. --- **1. Row 1:** - **Structures:** - The first structure shows a five-membered ring (cyclopentadienyl) with two adjacent double bonds and a negative charge on an external bond. - The second structure also shows a five-membered ring (cyclopentadiene) with a negative charge on the same external bond but no double bonds within the ring. - **Resonance Structures?:** - Options: - ☐ yes - ☐ no --- **2. Row 2:** - **Structures:** - The first structure represents a butanone-like molecule with a carbonyl group (C=O) and a negative charge on the adjacent carbon. - The second structure is similar but with the negative charge on the oxygen within the carbonyl group. - **Resonance Structures?:** - Options: - ☐ yes - ☐ no --- **3. Row 3:** - **Structures:** - The first structure is a benzene ring with a positive charge next to a single bond outside the ring. - The second structure is similar but displays the positive charge inside the ring, positioned near alternating double bonds. - **Resonance Structures?:** - Options: - ☐ yes - ☐ no --- **4. Row 4:** - **Structures:** - The first structure is identical to the first structure of Row 2, showing a carbonyl group with a negative charge on the adjacent carbon. - The second structure shifts the negative charge to the oxygen in the carbonyl group, similar to the second structure of Row 2, but with a positive charge on the carbon. - **Resonance Structures?:** - Options: - ☐ yes - ☐ no --- **Note:** Visualize each row to determine if the chemical structures can exist as resonance forms of each other, which involve the delocalization of electrons across the molecule without breaking any sigma bonds.
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