josesahagun2667 josesahagun2667
  • 24-05-2018
  • Biology
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Which halogen is a fatal poisonous gas, but is put in drinking water and swimming pools to prevent serious diseases?

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4mernewyorker
4mernewyorker 4mernewyorker
  • 24-05-2018
Chlorine is a fatal poisonous gas but is put in drinking water and swimming pools to prevent serious diseases.
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