Achieve HW #16 (Week 5 & 6) [ENDORSED]

[Sofia Cerpa 2E]

hello, the two polymer chains depicted in the image of this problem is a bit confusing and overwhelming. if someone could explain why the correct answer for the hydrogen bond cross-link is D, i would really appreciate it. thank you!

[rachelcameron2E]

For a hydrogen bond, you need hydrogen that is attached to either an O, F, or N atom, and another O, F, or N atom for this hydrogen to bond to. Thus, when looking at the problem, crosslink D is the only correct response. The hydrogen has a covalent bond to a Nitrogen atom, and the atom across from it is an Oxygen atom. The Hydrogen atom will be able to hydrogen bond to this oxygen atom because of this. I hope this helps!

[Genelle Marcelino-Searles 2G]

You need to find the hydrogen bond. D is correct bc the H here is attached to N and is bonding with O, therefore being a hydrogen bond.

[Mrinalini Mishra 2L]

Hi! Most likely if there is a bond connecting O-H or N-H, that is a hydrogen bond. Hope this helps!