It refers to a substance that can be used to follow the pathway of another substance through some structure.​

Sagot :

Answer:

Republic of the Philippines

Explanation:

iloveyou

Answer:

Solvent refers to a substance that will dissolve another substance. Concentration, in chemistry, refers to the amount (measure) of a substance that is mixed with another substance. It is most commonly used to describe the amount of a substance (solute) dissolved in another substance (solvent)