(Solved): 13. In the 1850s Michael Faraday prepared ruby red colloids of gold nanoparticles in water that are ...

13. In the 1850s 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 preparation is a solution or a colloid? (4 pts)