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MacRoscopic Properties: The World We See

Food and Senses

What is a surfactant?

Surfactants are molecules that reduce the surface tension of a liquid. These are typically amphiphilic organic molecules, which means that they have one hydrophobic and one hydrophilic section. This will cause them to align in a certain way at the surface of a liquid which interrupts the order of the liquid at the surface, lowering the surface tension.

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Mercury is the only metal that is a liquid at room temperature. It is also toxic and should not be handled with bare hands.

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