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ohaa [14]
1 year ago
14

How does a fire extinguisher works ?​

Chemistry
1 answer:
Usimov [2.4K]1 year ago
8 0

Answer:

<em>Most fire extinguishers work by separating the fuel from the oxygen. The oxygen comes from the air. It is the same oxygen we breathe. Since the oxygen has to be in contact with the fuel, if you can coat the fuel with something that keeps the oxygen away, the fire will go </em><em>out.</em><em> </em><em>S</em><em>ome </em><em>ways </em><em>of </em><em>using </em><em>fire </em><em>extinguisher </em><em>are:</em>

  • <em> Water extinguishers work mainly by cooling (removing heat), but a dense spray of water droplets also helps to cut off oxygen. </em>

  • <em> Dry powder extinguishers soak up heat, melt on the fuel, and cut off oxygen, but they also neutralize the </em><em>fuel</em><em> (cutting it off from the </em><em>fire)</em><em> </em><em>.</em>

Explanation:

I hope it was helpful...

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Answer:

the first one to the third box

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Explanation:

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3 years ago
How many moles are in 458 grams of na2so4
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A student assistant is cleaning up after a chemistry laboratory exercise and finds three one-liter bottles containing alcohol so
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The approximate alcohol content is 210 ml.

Explanation:

It can be deduced from the question that each bottle is of 1000ml or 1 litre.

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There are two open cans of soda on the table one can was just take it on the refrigerator and the other was taken from the cup b
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The one from the cupboard because it is warmer (has more thermal energy) than the one from the refrigerator. When a liquid becomes warmer, the solubility of a gas becomes lower. Therefore, there is already more CO2 in its gaseous state when the soda is warm.


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3 years ago
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