Crystal4556 Crystal4556
  • 22-11-2022
  • Chemistry
contestada

Chapter 20 if the bod of raw sewage is 200 ppm, by how much would that water have to be diluted to prevent the oxygen in a stream from dropping from 10 ppm to less than 6 ppm?.

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PLEASE HELP!!!! THANKS!! ILL MARK BRAINLIEST!!
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