Question

substances used as a fire extinguishers

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Answer 1

Answer:

The active material may be a powder such as potassium bicarbonate (KHCO3), liquid water, an evaporating fluorocarbon or the propelling agent itself. ... In these situations, fire extinguishers use different materials--ones that flood a protected compartment with a fire-fighting gas.

Answer 2

Explanation:

The active material may be a powder such as potassium bicarbonate (KHCO3), liquid water, an evaporating fluorocarbon or the propelling agent itself. ... In these situations, fire extinguishers use different materials--ones that flood a protected compartment with a fire-fighting gas