It could be either A or B hope this helps
Raindrops start to form in a roughly spherical structure due to the surface tension of water. This surface tension is the "skin" of a body of water that makes the molecules stick together. The cause is the weak hydrogen bonds that occur between water molecules
Explanation:
i don't understand what you wrote, but nonane is C9H20
I believe the best reason as for why carbon is the basis of organic chemistry would be D. Carbon can bond with hydrogen.
Answer:
The electronic structures of pentacene/MoO3/Al and pentacene/Al were studied using in situ photoemission spectroscopy. The secondary electron cutoffs, highest occupied molecular orbitals (HOMOs) and core level changes were measured upon deposition of the pentacene and MoO3 to study the electronic structures at the interface.
Hope it helps!
