Gina is trying to dissolve bath salts in her bathwater. How could she speed up the rate of dissolving, since she has limited time before she needs to leave for the school banquet? A.
Use her mom's large bath crystal instead of her powder salt.

B.
Stir the bath water quickly with her feet.

C.
Allow a large amount of cool water to fill the tub.

D.
Add five times more salts than the directions say to add

Cells in the nervous system have a potential difference of 70 mv across the cell membrane separating the interior of the cell from the extracellular fluid. this potential difference is maintained by ion pumps that move charged ions across the membrane. is this an emf? select the correct answer and explanation. 1)no. the ion pumps cannot separate charges; thus, they cannot create a potential difference. 2)yes. the ion pumps cannot separate charges, but they still can create a potential difference. 3)yes. the ion pumps can actively separate charge; thus, they can create a potential difference. 4)no. the ion pumps can separate charges, but they cannot create a potential difference.