What is the IUPAC name for the compound with the formula C6H5-CH=CH2?

What is the IUPAC name for the compound with the formula C6H5-CH=CH2?

Step 1: Identify the structure of the compound with the formula C6H5-CH=CH2. The C6H5 part indicates a phenyl group (a benzene ring minus one hydrogen).
Step 2: The CH=CH2 part indicates a double bond between two carbon atoms, which means this compound is an alkene.
Step 3: Combine the phenyl group with the alkene part. The phenyl group is attached to one of the carbons in the double bond.
Step 4: Determine the longest carbon chain that includes the double bond. In this case, the longest chain is two carbons (the double bond) plus the phenyl group.
Step 5: Name the compound. The IUPAC name for this compound is Styrene, which is a common name for this specific structure.

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