Sighting along the C2–C3 bond: identify the Newman projection of the most stable conformation. I II III IV

Draw the two possible chair conformations, and suggest a reason for the large energy difference. You may not be able to upload the drawing of the chemical structures and that is ok. Just write your reasoning using proper grammar.

What is the relationship (cis – trans) between blue colored OH and green colored OH.

Consider the molecule pentane. Is it an isomer of 2-methylbutane.

How many C-atoms are there in the molecule?

What is the bond angle value for ?

What is the relationship (cis – trans) between red/pink colored OH and black colored OH.

Provide the IUPAC name for this compound:

Name the following compounds according to IUPAC rules. Please TYPE in your answers.  a. b. c.

The IUPAC name for the starting material is [a].