Chemistry (12th Edition)

Published by Prentice Hall
ISBN 10: 0132525763
ISBN 13: 978-0-13252-576-3

Chapter 15 - Water and Aqueous Systems - 15.3 Hetergeneous Aqueous Systems - 15.3 Lesson Check: 23

Answer

The collisions of the molecules of the dispersion medium with the small, dispersed colloidal particles cause Brownian motion. Scintillations (flashes of light) are seen when colloids are studied under a microscope. Particles in a solution are too small to be seen under a microscope and do not cause scintillations.

Work Step by Step

The collisions of the molecules of the dispersion medium with the small, dispersed colloidal particles cause Brownian motion. Scintillations (flashes of light) are seen when colloids are studied under a microscope. Particles in a solution are too small to be seen under a microscope and do not cause scintillations.
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