Which statement best describes a suspension?

Which statement best describes a suspension?

• A. A homogeneous mixture that remains uniformly mixed over time
• B. A mixture of immiscible liquids that forms a single phase
• C. A mixture of two or more substances that are immiscible and tend to separate when standing
• D. A solid dissolved in a liquid

Answer: (C)

A suspension is a heterogeneous mixture where the dispersed particles are not dissolved and will settle out over time when left undisturbed. This means you don’t get a uniform blend, and given time, the components separate due to gravity. The statement that best fits this idea describes a mixture of two or more substances that are immiscible and tend to separate when standing. It highlights both non-uniform distribution and separation over time, which are the defining traits of a suspension. The other descriptions describe different types of mixtures. A describes a uniform, dissolved mixture (a true solution). B implies immiscible liquids but says they form a single phase, which isn’t correct because immiscible liquids form distinct layers rather than a single homogeneous phase. D describes a solid dissolved in a liquid, which is also a solution, not a suspension.

A suspension is a heterogeneous mixture where the dispersed particles are not dissolved and will settle out over time when left undisturbed. This means you don’t get a uniform blend, and given time, the components separate due to gravity.

The statement that best fits this idea describes a mixture of two or more substances that are immiscible and tend to separate when standing. It highlights both non-uniform distribution and separation over time, which are the defining traits of a suspension.

The other descriptions describe different types of mixtures. A describes a uniform, dissolved mixture (a true solution). B implies immiscible liquids but says they form a single phase, which isn’t correct because immiscible liquids form distinct layers rather than a single homogeneous phase. D describes a solid dissolved in a liquid, which is also a solution, not a suspension.