Answer:
ice, air, ducks and fabric
Explanation:
its common sense
In analytical chemistry, a standard solution<span> is a </span>solution<span> containing a precisely known concentration of an element or a substance. A known weight of solute is dissolved to make a specific volume.</span>
The main factor is the size of the moon. which is small compared to the earth, meaning that the moon has less gravity, and more gas is allowed to escape the surface, Which basically means theres no atmosphere.
Mixing helps ensure that the measured pH is reflective of the entire solution
The answer is OH.
Hope this helps!