Answer
This compound is "-en-".
Work Step by Step
1. Identify the double and triple bonds:
This structure has one double bond.
2. Find how to describe this:
A structure with a single double bond is represented by "-en-".
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.