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Which of these interferes with the chemical process that started the fire?
All of these
soda acid
Halon
carbon dioxide
Halon is used as a fire suppresant as it interferes with the process that started the fire. But because Halon is dangerous in high concentrations, EPA has banned it.
::COMMENT:: The proper answer should be "All of these." Explanation - A fire is a chemical reaction that takes place when heat, fuel, and oxygen are of sufficient quantities. Soda Acid (Sodium Bicarbonate or Baking Soda) or NaHCO3 is converted to sodium carbonate or Na2CO3 when heated. The process releases a small amount of water and large amounts of CO2, effectively disrupting the chemical reaction in the fire triad. CO2 displace oxygen required for the fire, also effectively disrupting the chemical reaction taking place. Halon will create an innert barrier around the fuel, once again effectively removing oxygen from the equation and disrupting the chemical reaction.
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