1. A. a solution, B. a colloid, C. a suspension
QUESTION:
If a medicine bottle has a “shake well before using” label, it most likely contains…
A. a solution, B. a colloid, C. a suspension
A mixture where particles of the components are evenly dispersed can be classified as solution, colloid, or suspension depending on the size of the particles.
If the particles are large enough to be seen by the unaided eye, the mixture is called a suspension. Suspensions look cloudy. The particles settle on standing. Suspensions need to be shaken to re-disperse the particles.
In colloids, the dispersed particles are too small to be seen by the unaided eye and do not settle on standing, but large enough to be seen if we shine light on the mixture. Colloids look cloudy.
In a solution, all particles are too small to be seen even if we shine light on the mixture. Liquid and gas solutions are clear.
If a medicine bottle has a “shake well before using” label, it most likely contains…
A. a solution, B. a colloid, C. a suspension
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A mixture where particles of the components are evenly dispersed can be classified as solution, colloid, or suspension depending on the size of the particles.
If the particles are large enough to be seen by the unaided eye, the mixture is called a suspension. Liquid suspensions
can be typically described as cloudy. The particles of a suspension settle on standing. Suspensions need to be shaken to re-disperse the particles.
Therefore, the correct answer is C.
In colloids, the dispersed particles are too small to be seen by the unaided eye and do not settle on standing, but are large enough to be seen if we shine light on the mixture. The scattering of light by colloids is called the Tyndall effect.
Colloids tend to look cloudy, but not as much as suspensions.
In a solution, all particles are too small to be seen even if we shine light on the mixture. A liquid or gaseous solution is clear or transparent. By this, we mean that we can see through it.
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2. Video ID: © 2008, Project VALUE (Video Assessment Library for Undergraduate Education), Department of Physical Sciences Nicholls State University Author: Glenn V. Lo Narrator: Funded by Louisiana Board of Regents Contract No. LA-DL-SELECT-13-07/08