A solution is a homogeneous mixture made up of a solute and a solvent. You can tell if a substance is a solution by looking for a uniform composition throughout, where the solute dissolves completely in the solvent. Solutions are typically transparent and do not separate upon standing.
Salt is the solute. Water is the solvent. Salt water is the solution. This solution is sometimes called a saline solution.
The purity is determined by chemical analysis.
Well if you heat the saturated solution all the solids should dissolve and it should stay a colourless solution with no solids even if it does cool down to the original temperature. At this point it is supersaturated.
You can tell that a chemical reaction occurred with copper sulfate if there is a visible color change in the solution, such as the solution turning blue or green. Additionally, if there is a formation of a solid precipitate, like copper hydroxide forming as a blue-green solid at the bottom of the solution, it indicates a chemical reaction has taken place.
A solution is saturated when it is no longer possible to dissolve an additional quantity of solute, at constant temperature.
You can't tell that a mixture is a solution to anything until the mixture is thoroughly chemically tested and proven.
If it is solid at room temperature but melts when heated.
Litmus will allow you to tell if a solution is a acid or a base.
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Tell them that you have herpes, she will understand.
Tell them it's the answer to something
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That will all depend on what the question was!
Salt is the solute. Water is the solvent. Salt water is the solution. This solution is sometimes called a saline solution.
The easiest way to tell the difference is by observing weather the particle of the solid are clumping at the bottom (suspension) or dispersed evenly throughout the liquid (solution)