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Kaplan Qbank USMLE



Author4 Posts
  #1

ok im a 10th garde student, so for my science fair proyect i tried to prove if the common bacterias in soil could rust iron, my conclusions were that in prescence of bacteria, iron rusted more rapidly than with just normal water, so why my question is: can sulfate-reducing bacteria be the ones that rusted the iron in my experiment?

PLEASE HELP

  #2

EDIT "my conclusions were that the iron with the bacteria rusted more than the one with normal water"

  #3

raised eyebrow rusting is a redox. Oxidation means loss of electrons and reduction means gain of electrons. When rusting occurs iron accepts electrons from an electron donor. The electron acceptor could not be the bacteria because as the name of the microorganism indicates the bacteria can only utilize only sulfur as electron acceptor and not iron. It is quite possible that other bacteria which are photosynthetic in nature could fasten the process of rusting by releasing oxygen which helps rusting.nod

  #4

raised eyebrow rusting is a redox. Oxidation means loss of electrons and reduction means gain of electrons. When rusting occurs iron accepts electrons from an electron donor. The electron donor could not be the bacteria because as the name of the microorganism indicates the bacteria can only utilize only sulfur as electron acceptor and not iron. It is quite possible that other bacteria which are photosynthetic in nature could fasten the process of rusting by releasing oxygen which helps rusting.nod







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