Help, please??

I know this isn't a math question, but I have received no answers in the chemistry section of this site. Can anyone in here help with this question?

I cannot find the answer to this anywhere in my chem book: What is the major difference between the two-dimensional and three- dimensional models of ethane and methane? When might you choose to use a two-dimensional model rather than a three-dimensional model when representing one of the molecules?

Question

Help, please??

I know this isn't a math question, but I have received no answers in the chemistry section of this site. Can anyone in here help with this question?

I cannot find the answer to this anywhere in my chem book: What is the major difference between the two-dimensional and three- dimensional models of ethane and methane? When might you choose to use a two-dimensional model rather than a three-dimensional model when representing one of the molecules?

anonymous · Answer

Did you ever figure this question out? All I can figure out is that you cannot correctly display these types of molecules in a two dimensional structure, as you could in a three- dimensional structure due to the shape of the atoms inside the molecule.

anonymous · Answer

The 3D model is more specific, but harder to write/draw.  The 2D model is easier to draw on paper, but is more vague about how the molecule is configured.