Polymer and Basic Chemistry Review

What is a polymer?

• A single atom

• A short chain of metals

• A long chain of repeating units

• A type of energy

The small units that make up polymers are called

• Elements

• Monomers

• Compounds

• Crystals

Which element is most commonly found in polymer backbones?

• Oxygen

• Nitrogen

• Carbon

• Iron

Tags

NGSS.HS-LS1-6

Which of the following is a natural polymer?

• Plastic Bottles

• Nylon

• Rubber (Latex)

• Polyester

Which polymer is commonly used to make water bottles?

• Silk

• Cellulose

• Starch

• Polyethylene terephthalate (PET)

What property makes polymers useful for making flexible materials?

• Ability to conduct electricity

• Elasticity

• High melting point

• Magnetism

What happens when many polymers are heated?

• They break apart

• They become more flexible

• They become magnetic

• They turn into gas immediately

Crosslinking in polymers

• Breaks polymer chains

• Connects polymer chains

• Shortens polymers

• Removes atoms

Increasing crosslinking generally makes a material

• Softer

• More flexible

• More rigid

• Liquid

Why does a stretched polymer become harder to tear?

• It gains heat

• Chains are aligned

• It absorbs water

• It loses atoms