Nylon is a “big” covalent molecule used to make backpacks. Which property of covalent compounds is most useful in making backpacks?

Backpacks need a material that can bend and flex without breaking. Nylon is a large covalent molecule that forms a flexible, soft material, so “soft” is the most useful property here. Brittleness would make the backpack prone to cracking, while low melting point and electrical conductivity are not useful for this purpose.

AI-written and checked against the verified answer.