An aqueous solution can dissolve 25 g of solid at 25 degree if someone dissolves 20 g of this solid in water at 25 degree then this solution will be called. A) Supersaturated solution

B) Unsaturated solution

C) Saturated solution

D) Solution of liquid in liquid.

E) Other (explain)

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Yet both compounds and elements are considered pure substances. Pure compounds are created when elements combine permanently, forming one substance. For example, when the elements mercury and oxygen combine, and a chemical reaction takes place, mercury (II) oxide is created.

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