In the water
Gas or solid
If the solid is soluble (can dissolve) then it will dissolve in the liquid and give you a solution.
Solid doesn't spread.
Salt is a solid; water can dissolve candies.
This solid is called a solute.
The liquid is called a solvent. It has the ability to dissolve solid particles, forming a solution.
Diamond does not dissolove
a solid that can dissolved is called a soluble
If you try to dissolve a lot of solid in a small amount of liquid, you may reach a point where the liquid becomes saturated and can no longer dissolve any more of the solid. The excess solid will remain undissolved at the bottom of the container.
When a solid does not dissolve into a liquid, it is referred to as insoluble. This means that the solid remains in its original form and does not mix evenly with the liquid.
Solid iodine dissolves in organic solvents such as carbon tetrachloride, chloroform, or diethyl ether. It does not dissolve readily in water.
A solid that can dissolve is called soluble. A solid that has dissolved is called a solute.