Polystyrene is not used for A) condiment bottles. B) ...

[tuffie]

Polystyrene is not used for
 
  A) condiment bottles.
  B) disposable coffee cups.
  C) material for packing.
  D) home insulation.

Question 2

Certain side chains (R groups) in amino acids are nonpolar. In the structure of a protein, nonpolar groups are generally found
 
  A) on the interior of the protein structure, shielded from interaction with water molecules.
  B) on the exterior of the protein structure, shielded from interaction with water molecules.
  C) on the interior of the protein structure, maximizing their interaction with water molecules.
  D) on the exterior of the protein structure, maximizing their interaction with water molecules.

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Answer to Question 1

A

Answer to Question 2

A

[tuffie]

Thanks for the timely response, appreciate it

[helenmarkerine]

Great answer, keep it coming