Are the pairs of compounds shown below the same molecule, isomers, or different molecules? <IMAGE>

What is wrong with the following structures?

CH₃=CHCH₂CH₂OH

There are two things wrong with the following structure. What are they? <IMAGE>

What do the terms saturated and unsaturated mean?

Draw an example of a saturated four carbon compound and an unsaturated four carbon compound.

Identify the following as alkanes, alkenes, cycloalkenes, or alkynes:

d. <IMAGE>

Identify the following as alkanes, alkenes, cycloalkenes, or alkynes:

a. <IMAGE>

Indicate whether each of the following pairs represent structural isomers or the same molecule:

b. <IMAGE>

Identify the compounds in each of the following pairs as structural isomers or not structural isomers: (11.3)

b. <IMAGE>