Why is the H sometimes added(labeled) on structures, and sometimes it is not?

Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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Why is the H sometimes added(labeled) on structures, and sometimes it is not?

The image depicts the structural formula of a bicyclic organic compound. The compound consists of two fused cyclohexane rings, forming a bicyclo[4.4.0]decane structure.

- The two cyclohexane rings are hexagonal in shape, sharing two carbon atoms at the bridgehead position.
- On one of the bridgehead carbons, there is a hydrogen atom (H) bonded out of the plane (shown with a wedged line indicating that the hydrogen is coming out towards the viewer).
- Attached to the adjacent carbon, there is a bromine atom (Br) also bonded out of the plane (indicated with a wedged bond), suggesting that both the hydrogen and bromine are on the same side of the molecule in a syn configuration.

This structural diagram is used to illustrate molecular geometry and the orientation of substituents in bicyclic systems, providing insight into stereochemistry for educational purposes.
Transcribed Image Text:The image depicts the structural formula of a bicyclic organic compound. The compound consists of two fused cyclohexane rings, forming a bicyclo[4.4.0]decane structure. - The two cyclohexane rings are hexagonal in shape, sharing two carbon atoms at the bridgehead position. - On one of the bridgehead carbons, there is a hydrogen atom (H) bonded out of the plane (shown with a wedged line indicating that the hydrogen is coming out towards the viewer). - Attached to the adjacent carbon, there is a bromine atom (Br) also bonded out of the plane (indicated with a wedged bond), suggesting that both the hydrogen and bromine are on the same side of the molecule in a syn configuration. This structural diagram is used to illustrate molecular geometry and the orientation of substituents in bicyclic systems, providing insight into stereochemistry for educational purposes.
Expert Solution
Step 1: Describe the bond-line structure

Bond-line structure refers to a structure where plain lines indicate that the groups are in plane of the paper. Dots or intersection of lines indicate carbon atoms.

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