If one compound has the formula C₅H₁₀ and another has the formula C₄H₁₀ are the two compounds isomers? Explain.

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

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Draw a constitutional isomer of butane.

Draw all structural isomers for C₃H₈O.

Provide a cis isomer for the following compound.

Write condensed structures for the following molecular formulas. More than one isomer will be required for each.

Isomers of C₈H₁₈ that contain two methyl groups and a longest chain of 4 carbons

How many straight-chain isomers can you write that fit the following descriptions? See Worked Example 12.12 for guidance.

Amines (―NH₂) with a longest chain of 7 carbons

How many isomers can you write that fit the following descriptions? See Worked Example 12.12 for guidance.

Alcohols (―OH) formed from 2-methylhexane

Which of the following pairs of structures are identical, which are isomers, and which are unrelated? <IMAGE>