Which statement describes a solution?

Which statement describes a solution?

• A. A substance that cannot be dissolved
• B. A substance that has a definite shape
• C. A special type of mixture where one or more substances are dissolved in another
• D. A mixture where all parts are evenly separated

Answer: (C)

A solution is a homogeneous mixture formed when one substance dissolves in another, creating a uniform blend at the particle level. The statement that best describes this is that one or more substances are dissolved in another, since dissolving means the particles of the solute are dispersed evenly throughout the solvent. For example, salt in water becomes a saltwater solution because the salt dissolves and distributes its ions uniformly, so you can’t see separate parts. The other descriptions don’t fit a solution: something that cannot be dissolved is insoluble, a definite shape points to a solid and not to dissolved particles, and a mixture with all parts evenly separated implies distinct components that remain separate rather than a dissolved, uniform substance.

A solution is a homogeneous mixture formed when one substance dissolves in another, creating a uniform blend at the particle level. The statement that best describes this is that one or more substances are dissolved in another, since dissolving means the particles of the solute are dispersed evenly throughout the solvent. For example, salt in water becomes a saltwater solution because the salt dissolves and distributes its ions uniformly, so you can’t see separate parts. The other descriptions don’t fit a solution: something that cannot be dissolved is insoluble, a definite shape points to a solid and not to dissolved particles, and a mixture with all parts evenly separated implies distinct components that remain separate rather than a dissolved, uniform substance.