Write the molecular formula, expanded structural formula, and condensed formula of the following hydrocarbons.

Question

1. Heptane
2. 3-Hexene
3. 2-Butyne
4. Decyne
5. Propene

Answer 1

Certainly! Here are the molecular formulas, expanded structural formulas, and condensed formulas for the requested hydrocarbons:

1. Heptane

• Molecular Formula: C₇H₁₆

• Expanded Structural Formula:

  H   H   H   H   H   H   H
  |   |   |   |   |   |   |
  H—C—C—C—C—C—C—C—H
  |   |   |   |   |   |   |
  H   H   H   H   H   H   H
  

• Condensed Formula: CH₃(CH₂)₅CH₃

2. 3-Hexene

• Molecular Formula: C₆H₁₂

• Expanded Structural Formula:

  H   H   H       H   H
  |   |   |       |   |
  H—C—C—C=C—C—C—H
  |   |   |       |   |
  H   H   H       H   H
  

• Condensed Formula: CH₃CH₂CH=CHCH₂CH₃

3. 2-Butyne

• Molecular Formula: C₄H₆

• Expanded Structural Formula:

  H   H
  |   |
  H—C≡C—C—H
      |
      H
  

• Condensed Formula: CH₃C≡CCH₃

4. Decyne

• Molecular Formula: C₁₀H₈

• Expanded Structural Formula:

  H   H   H   H   H   H   H   H   H   H
  |   |   |   |   |   |   |   |   |   |
  H—C≡C—C—C—C—C—C—C—C—C—H
      |   |   |   |   |   |   |   |
      H   H   H   H   H   H   H   H
  

• Condensed Formula: CH₃C≡CCCCCCCH₃

5. Propene

• Molecular Formula: C₃H₆

• Expanded Structural Formula:

  H   H
  |   |
  H—C—C=C—H
      |   |
      H   H
  

• Condensed Formula: CH₂=CHCH₃

Let me know if you need further information on these compounds!