Yes, polymer chains are made of large molecules. Here's a breakdown:

* Monomers: The building blocks of polymers are small molecules called monomers.

* Polymerization: Monomers chemically bond together in a long chain through a process called polymerization.

* Polymer Chains: These long chains of repeating monomer units are called polymer chains.

* Large Molecules: Polymer chains can contain hundreds, thousands, or even millions of monomers, making them very large molecules.

Example: Polyethylene (plastic) is made from repeating ethylene monomers. The chains can be very long, resulting in a large molecule.

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