Kevlar is a lightweight polymer used to reinforce bulletproof vests, to make safety gear such as helmets, and in a variety of other applications. This is because, $1$

is spun into a fiber, it is five times stronger than an equivalent mass of steel. The abbreviated structure of Kevlar is as follows:

Kevlar is a condensation copolymer, which means it consists of alternating monomer units that polymerize through condensation reactions. Given the dimer

representation of Kevlar above, edit the polymer to give the two structures of the two monomers used to synthesize Kevlar.

Draw the molecule by placing atoms on the grid and connecting them with bonds. Include all hydrogen atoms.

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