Answer:
C, Moves energy.
<u><em>i hope this helped at all. sorry if its incorrect, have a good day.</em></u>
Answer:
I hate this i already know all of you are using this site
Explanation:
for cheating on edge or school don't play me
at the end of the year they'll give you a final test
this is a sign
The open spaces in water's crystal structure make it possible for <span>aquatic life to exist at the north pole.
It is good to know that, at the north pole, when the temperature drops below zero, only the top layer of the water freezes. Underneath this freezing layer, water remains in its liquid form, thus, allowing marine life to exist. As for oxygen, it is also trapped underneath the ice layer. </span>

so:



so:

it means that
in

of acid there is

moles of acid

so:

it means that:
in

of water there is

moles of water
therefore:

So your answers are:

and the mole fraction is: