Question

7. Carbon dioxide extinguishes fire because-*
(1 Point)
it is lighter than a
is heavier than air
does not support combustion
it is heavier than air and not a supporter of combustion

Answer 1

Answer:

DOES NOT SUPPORT COMBUSTION

Explanation:

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Answer 2

Carbon dioxide is used in fire extinguishers, as a refrigerant, and in coal blasting. It is water- soluble to a degree.

Explanation:

• One carbon atom and two oxygen atoms make up carbon dioxide, a chemical molecule.

• It is a waste product that our bodies produce. Carbon dioxide is a noncombustible gas that can be used to put out a fire by flooding the area around it with it.

• Carbon dioxide does not extinguish fire, but it does reduce oxygen supply by replacing or displacing it.

• Carbon dioxide envelops the flames, cutting off oxygen and fuel contact. This is due to the fact that carbon dioxide is heavier than oxygen.