Mixing a solid and a liquid together does not change the total mass of the mixture. This is because of the Law of Conservation of Mass, which states that mass cannot be created or destroyed in a chemical reaction or physical change.

Here's why:

* The solid and the liquid retain their individual masses. When you mix them, you are simply combining their individual masses.

* No new matter is formed, nor is any matter lost. The mixture is just a combination of the original substances.

Example:

Imagine you mix 10 grams of sugar (solid) with 100 grams of water (liquid). The resulting sugar solution will have a mass of 110 grams, which is the sum of the individual masses of the sugar and water.

Important note: While the total mass remains constant, the volume of the mixture may be different from the sum of the volumes of the individual components. This is because the particles of the solid and liquid may interact and occupy different spaces.