Polymer test review

Many monomers attached together is called?

• dimer
• trimer
• monomer
• polymer

Organize these options into the right categories

Groups:

(a) Natural Polymers

,

(b) Synthetic Polymers

• Plastic

• Paper

• Wood

• styrofoam

• nylon

• Cotton

Tags

NGSS.MS-PS1-3

What is a polymer?

• A polymer is a large molecule composed of repeating units called monomers.

• A polymer is a type of metal.
• A polymer is a type of plant.
• A polymer is a small molecule composed of repeating subunits called dimers.

Tags

NGSS.MS-PS1-1

We used the strings in class to see what phenomenon?

• Cross-linking

• Intermolecular forces

• polymerization

The ​ (a)   the borax solution the less cross-linking. Which gave the slime ​​ (b)  

• lower
• more flow.
• higher
• less flow.

Tags

NGSS.MS-PS1-2

Match the following

• PETE

• 
• PP

• 
• HDPE

• 

Tags

NGSS.MS-ESS3-3

NGSS.MS-ESS3-4

Polymers are made out of what type of bond?

• hydrogen
• covalent
• metallic
• ionic

What happens to the melting point as polymers get longer?

• The melting point generally decreases.
• The melting point remains the same.
• The melting point generally increases.
• The melting point is not affected by the length of polymers.

Tags

NGSS.MS-PS3-4

All plastics are ​ (a)   but NOT all polymers are ​ (b)   .

• polymers
• Metals
• atoms
• plastics

Tags

NGSS.MS-PS1-3

We created a density column with plastics and different liquids in class. What could you say about the plastic that was at the top of the column?

• The liquids were at the top

• It is the most dense

• It is the least dense

• No plastic was at the top.