Question

Large molecules are formed by what process?

Answer 1

Polymerization

Explanation:

Polymerization is the process of combining tons of monomer molecules to form a polymer. Many everyday things are made of polymers, such as plastic.

The easiest molecule I can think of that is made to polymers is ethene `(C_2H_4)` into polyethene `((C_2H_4)_n)`.

Read more at:

http://www.materials.unsw.edu.au/tutorials/online-tutorials/1-polymerisation