Question

What is the polymer formed from the monomers 1,2-diaminoethane and ethanedioic acid (oxalic acid)? (it say draw but it might be tough to do here)

Answer 1

Helpful hint: Ethylenediamine (aka. 1,2-diaminoethane) contains two amine groups.

I have attached images so you can better visualize. Do you know where the partial charges lie on these molecules? From what I recall off the top of my head, Ethylenediamine tend to form heterocycles when it starts picking up extra protons from the acid, yes?