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The surface tension of liquids (observation)

The surface tension of liquids (observation)

We observe whether a razor blade can float on the surface of different liquids.

01:06

Chemistry

Keywords

surface tension, fluid, liquids, water, acetone, ether, razor, physical property, cohesion, cohesive force, boundary, density, force, attractive force, surface, general chemistry, experiment, chemistry, physics

On-screen labels

Water, Acetone, Ether, Drop a steel razor blade onto the surface of each liquid and see on which one the razor blade stays afloat., The density of the three liquids are approximately the same but the density of steel is almost ten times that of the liquids. Why does the razor blade float on the surface of water? What causes this phenomenon?
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