What happens to the entropy of a system as more heat is added beyond the boiling point? a. entropy decreases. b. entropy fluctuates in a pattern. c. entropy stabilizes. d. entropy increases.

Atypical human cell is approximately 12.00 μm in diameter and enclosed by a membrane that is 5.000 nm thick. (a) what is the volume of the cell including the membrane? (b) what is the volume of the cell membrane? (c) what percent of the total volume does its membrane occupy? to simplify the calculations, model the cell as a sphere. enter your answers using four significant figures.

This is the amino acid cysteine. circle the amine group, put a box aroundthe carboxylic acid group and use a different colored pencil/pen to circle the sidechain (r group). h o | ||nh2— c- c-oh | ch2 | sh

The buildup of sediments where a river empties into a slow-moving or nonmoving body of water is known as a/an