Would You Expect Polypropylene to Be Denser or Less Dense

question 60

Multiple Choice

Would you expect polypropylene to be denser or less dense than low-density polyethylene? Why?

• A)Polypropylene should be more dense because because it has a greater molecular mass.
• B)Polyproylene should be more dense because its molecules are able to pack more closely together.
• C)Polyproylene should be less dense because its molecules are not able to pack together as tightly.
• D)Polypropylene should be more dense given that the polyethylene is already known to be of low density.

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Definitions:

Flatworms

A group of invertebrates within the phylum Platyhelminthes, known for their flat bodies, and include species such as tapeworms and liver flukes.

Excretion

Elimination of metabolic wastes by an organism at exchange boundaries such as the plasma membrane of unicellular organisms and excretory tubules of multicellular animals.

Trichinella Worms

Parasitic roundworms that cause trichinosis, a disease that results from consuming undercooked meat containing cysts of the worm.

Skeletal Muscle

Striated, voluntary muscle tissue that comprises the majority of the muscles in the human body; also called striated muscle.