I have to answer the following questions about C3H7Cl:

Are there different constitutional isomers for this formula, are there different cis/trans isomer, and are there different conformers?

I know that C3H7Cl can be drawn two ways:

H-C-C-C-Cl With H's above and below the 3 carbons

H-C-C-C-H with H's above and below the carbons and a Cl on one of the carbons.

I am not sure if these two ways would be considered conformers or constitutional isomers?

Hmmm. Why do you assume the CL is on the end carbon? I see no difference in the three you drew, but if Cl were on either of the center carbons....

So then they are not conformers or constitutional isomers correct?

C-C-C-Cl is one isomer.

C
|
C-Cl
|
C
is another isomer

http://en.wikipedia.org/wiki/Structural_isomer

http://en.wikipedia.org/wiki/Conformational_isomerism

To answer the first part of your question, let's define the terms:

Constitutional isomers: These are different compounds with the same molecular formula but different connectivity. In other words, they have the same atoms but arranged in different ways.

Cis/trans isomers: These are a type of stereoisomer, where different groups are positioned differently around a double bond or a ring. For this to happen, there must be either a ring or a double bond present in the molecule.

Conformers: These are different spatial arrangements of the same molecule that can be interconverted by rotation along single bonds.

Now, let's analyze the two different ways you drew C3H7Cl:

1. H-C-C-C-Cl (with H's above and below the 3 carbons)
2. H-C-C-C-H (with H's above and below the carbons and a Cl on one of the carbons)

These two structures you drew are indeed different constitutional isomers because they have different connectivity. In the first structure, the chlorine (Cl) is attached to the last carbon (far right), while in the second structure, there is no chlorine.

They are not cis/trans isomers because there is no double bond or ring present in the molecule. Cis/trans isomerism only applies when there is a double bond or a ring.

Finally, these two structures can also be considered conformers because they can be interconverted through rotation about the C-C bonds. The rotation can occur due to the free rotation around single bonds in the molecule.

In summary:
- These two structures are different constitutional isomers because they have different connectivity.
- They are not cis/trans isomers since there is no double bond or ring.
- They can also be considered conformers since they can be interconverted by rotation around the single bonds.