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What is produced on the top of a pool of water by the mutual attraction between water molecules?

A. surfactant
B. surface tension
C. a much smaller volume
D. a much higher density


Sagot :

Final answer:

Surface tension is the energy needed to increase a liquid's surface area, caused by cohesive forces between molecules. It allows objects denser than water to float.


Explanation:

Surface tension is the energy required to increase the surface area of a liquid due to cohesive forces between molecules at the surface. It creates a 'skin' on the surface of liquids like water and allows objects denser than water to float. For example, insects can walk on water due to this property.


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