Sprinkle some black pepper on the surface of some pure water in a saucer. The pepper floats. Add a drop of liquid dish soap to the surface, and the pepper grains repel from the soap droplet. Stir gently once or twice and watch the pepper sink.
Sprinkle some black pepper on the surface of some pure water in a saucer. The pepper floats. Add a drop of liquid dish soap to the surface, and the pepper grains repel from the soap droplet. Stir gently once or twice and watch the pepper sink.
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Question
Sprinkle some black pepper on the surface of some pure water in a saucer. The pepper floats. Add a drop of liquid dish soap to the surface, and the pepper grains repel from the soap droplet. Stir gently once or twice and watch the pepper sink.
Expert Solution
Step 1
Surface tension: it's liquid surfaces at rest to shrink into the minimum surface area possible.It makes objects with a higher density than water (razor blades and insects) to float on a water surface.
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