In the 1850s, Michael Faraday prepared ruby-red colloids of gold nanoparticles in water that are still stable

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In the 1850’s, Michael Faraday prepared ruby-red colloids of gold nanoparticles in water that are still stable today. These brightly colored colloids look like solutions. What experiment(s) could you do to determine whether a given colored preparation is a solution or colloid?

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Chemistry The Central Science

ISBN: 9780321910417

13th Edition

Authors: Theodore E. Brown, H. Eugene LeMay, Bruce E. Bursten, Catherine Murphy, Patrick Woodward, Matthew E. Stoltzfus

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