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Why does fire need oxygen?

Updated: 8/11/2023
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8y ago

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The oxygen that a fire needs is used to support the chemical reaction which takes place when something burns. The oxygen is used along with heat to convert the fuel, which typically is composed of hydrocarbons, to mostly carbon dioxide and water. Without the oxygen the fire would die out, because the chemical reaction couldn't take place without it. A fire needs three things in order to remain burning: fuel, an adequate supply of oxygen, and a sufficient heat source.

Oxygen does not itself burns but supports burning.If the burning substance does not get adequate amount of Oxygen the burning of a substance willl b reduced and fire wouldn't rise much.It will blowed off.

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8y ago
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8y ago

Fire is a chemical reaction between oxygen and some flammable substance. For example, when you burn methane, the main component of natural gas the equation is:

CH4 + 2O2 --> CO2 + 2H2O

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13y ago

It is like Humans we need it to breath so it is like the same concept for them if you get me.

But it leads onto another question....

Why is the sun burning when there is no oxygen in space?

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7y ago

Yes. Fire needs three things to exist: Heat, Fuel and Oxygen (known collectively as the fire triangle).

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15y ago

oxygen is part of the burning reaction CxHy +zO2--> H20 +CO2 + CO + fire

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14y ago

All forms of burning are combining chemicals with oxygen.

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14y ago

The oxygen that a fire needs is used to support the chemical reaction which takes place when something burns.

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13y ago

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Oxygen. It supports combustion.


Why does fire need air?

Fire needs the oxygen in the air. Any other source of oxygen would also sustain fire.


Is it possible to create fire on the Moon?

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Fire needs oxygen to burn.


What does a fire need to burn well?

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You need oxygen, heat, and fuel.


What are the 3 ingredients of fire?

For fire you need three main ingredients. First you need a fuel, this fuel can be anything that burns like wood for example. Second you need oxygen, without oxygen a fire cannot burn. Finally you need heat, even though fires give off heat you still need it to start a fire. If you remove any one of these three ingredients then the fire will die.


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No. Adding oxygen to a fire will make it burn faster and hotter. In fact, one of the ways of putting out a fire is to cut off the supply of oxygen.


Can a fire burn in a room with no oxygen?

No it can't. You need oxygen to burn for it to work.


Does a fire have oxygen?

Yes, most fires need oxygen to burn (combustion is a rapid form of oxidation). If there is no continuous supply of oxygen, a fire will go out.


Why do rockets need to carry a supply of oxygen?

Rockets need to carry a steady supply of oxygen so that the fire that takes them off of the ground can burn. You must remember that to have fire you must have oxygen.


What is needed for something to burn?

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