What Is the Relationship Between the Two Structures Shown

Q13: Which of the following structures is a

Q14: Convert the following Fischer projection into a

Q15: How many stereoisomers are possible for 2,3-dimethylbutane?

Q16: What is the relationship of the following

Q17: Assign the absolute configuration of the chirality

Q19: Draw the meso isomer of the following

Q20: Draw the structure of the compound (R)-4-ethyloctane.

Q21: Which of the following choices is a

Q22: What is the relationship between the following

Q23: Assign the following stereocenter as having the