Protons and neutrons
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Answer:
1. During diffusion, when the concentration of molecules on both sides of a membrane is the same, the molecules will continue to move across the membrane in both directions.
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I would love to help but it is 3 or is it 3 million?
Explanation:
Reaction equation for this reaction is as follows.

It is given that
= 0.0118.
According to the ICE table,

Initial: 0.86 0.86 0 0
Change: -x -x +x +x
Equilibrium: 0.86 - x 0.86 - x x x
Hence, value of
will be calculated as follows.

0.0118 = 
x = 0.084 atm
Thus, we can conclude that
is 0.084 atm.
I think the answer is a). There are 20 kinds of amino acid can form peptides and proteins. There are many possible combinations. And there are also different folding forms and structure that can lead differences in properties.