<h2>2 moles of NH³ </h2>
<h2>MARK ME BRAINLIST</h2>
Answer : Option 4) 
Explanation :
is the only sample of matter which can be classified as a solution. As the solution can be defined as a liquid mixture which contains a minor component (the solute) that is uniformly distributed within the major component (the solvent).
In this case, the solute is
which is dissolved in water which acts as an solvent. Also, it has a subscript which is aq. which means aqueous, is often given to the solution in which the solvent is water.
Therefore,
is the correct answer.
Thats a tuff one ummmmmm 4.5 m
D. Changes
Hope this helps :)
The answer would be the third one listed, Refraction