Answered

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explain a metal pin was observed to float on pure water. however the pin sank when a few drops of soap were added to the water​

Sagot :

akashneel

Answer:

due to heaviness

Explanation:

because metal is heavier than water

Soap is a surface active substance which decreases the surface tension of the liquid due to which pin that was floating in pure water sinks when few drops of soap was added

What is surface tension?

Surface tension is the tension of the surface film of a liquid caused by the attraction of the particles in the surface layer by the bulk of the liquid, which tends to minimize surface area.

Soap is a surface active substance which decreases the surface tension of the liquid due to which pin that was floating in pure water sinks when few drops of soap was added

learn more about surface tension

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