Question

question 15
which of the following lewis structures represents a nonpolar molecule?
question 16
consider two hybrid orbitals on the same atom. which of the following combinations would result in 120° bond angles?

Explanation:

Question 15: A nonpolar molecule has symmetric molecular geometry, leading to canceled dipole moments.
Question 16: sp² hybrid orbitals form a trigonal planar arrangement, resulting in 120° bond angles.

Answer:

Question 15: D. :O=Xe=O:
Question 16: D. sp²-sp²