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How does soap stay clean?

You know, the bar kind of soap...

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Emily357

Asked by Emily357 at 12:34 AM on Sep. 21, 2013 in Home & Garden

Level 7 (153 Credits)
Answers (3)
  • Because dirt and bacteria can't stick to things when they're coated with soap (this is a function of soap molecules having both positively and negatively charged ions.) It's not that the bar of soap itself stays "clean," but even if a bar of soap is inoculated with bacteria (there have been experiments where they did this) the bacteria can't stick to you when you wash with it, because they're coated with soap molecules.
    SWasson

    Answer by SWasson at 7:44 AM on Sep. 21, 2013

  • It doesn't. That's why you are supposed to lather & rinse thoroughly.
    ILovemyPaulie

    Answer by ILovemyPaulie at 10:16 AM on Sep. 21, 2013

  • Wow, thank, SWasson. I learned something new today. I always wondered about that.
    Ballad

    Answer by Ballad at 1:33 PM on Sep. 21, 2013

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