Combustion Equation

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chrisavalos-2L
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Combustion Equation

Postby chrisavalos-2L » Fri Nov 09, 2018 5:23 pm

What is the rule for a combustion equation? Do they always produce Carbon Dioxide and Water? I have just never been sure of this. Thank You.

Lauren Ho 2E
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Re: Combustion Equation

Postby Lauren Ho 2E » Fri Nov 09, 2018 6:15 pm

Combustion reactions always have oxygen and a hydrocarbon as reactants and will always produce CO2 and H2O.

hazelyang2E
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Re: Combustion Equation

Postby hazelyang2E » Fri Nov 09, 2018 6:44 pm

Yes, combustion reactions will always yield carbon dioxide and water. If there are other elements involved in the reaction then there will be other products.

Lauren Huang 1H
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Re: Combustion Equation

Postby Lauren Huang 1H » Sat Nov 10, 2018 10:31 am

Sometimes nitrogen can be an added reactant and product of the equation.

yea-lyn pak_1G
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Re: Combustion Equation

Postby yea-lyn pak_1G » Sat Nov 10, 2018 11:55 am

O2 is always going to be added as a reactant in a combustion equation, and the products will include water and carbon dioxide.

Erin Kim 2G
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Re: Combustion Equation

Postby Erin Kim 2G » Sat Nov 10, 2018 12:26 pm

generally the equation is CxHyOz + O2= CO2 + H20

Brandon Sanchez 3J
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Re: Combustion Equation

Postby Brandon Sanchez 3J » Sat Nov 10, 2018 5:59 pm

Yes CO2 and H20 are always the products and O2 is one of the reactants

SophiaKohlhoff4B
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Re: Combustion Equation

Postby SophiaKohlhoff4B » Sun Nov 11, 2018 8:28 pm

The reaction for combustion will be compound + O2 --> CO2 + H2O

Jack Hewitt 2H
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Re: Combustion Equation

Postby Jack Hewitt 2H » Thu Dec 06, 2018 6:25 pm

chrisavalos- 1K wrote:What is the rule for a combustion equation? Do they always produce Carbon Dioxide and Water? I have just never been sure of this. Thank You.

Yes, combustion reactions will always produce CO2 and H2O.

duenezjuleny1D
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Re: Combustion Equation

Postby duenezjuleny1D » Wed Jun 26, 2019 10:58 am

They will usually be “--> CO2 + H2O” but in reality it can change or form other compounds.

MedhaVallurupalli1F
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Re: Combustion Equation

Postby MedhaVallurupalli1F » Wed Jun 26, 2019 1:32 pm

Combustion reactions always result in Carbon Dioxide and Water.

Jeril Joseph 1B
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Re: Combustion Equation

Postby Jeril Joseph 1B » Wed Jun 26, 2019 5:36 pm

Lauren Huang 1H wrote:Sometimes nitrogen can be an added reactant and product of the equation.

When would nitrogen be a product from a combustion reaction? Like, in what scenario?

hannabarlow1A
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Re: Combustion Equation

Postby hannabarlow1A » Wed Jun 26, 2019 8:36 pm

Lauren Huang 1H wrote:Sometimes nitrogen can be an added reactant and product of the equation.

Will this be something that comes up in 14A though? Or should we just assume oxygen and water for now?

Zachary Menz 1D
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Re: Combustion Equation

Postby Zachary Menz 1D » Thu Jun 27, 2019 3:24 pm

Regarding elements other than carbon, oxygen, and hydrogen in combustion, my TA said that if there are questions concerning more complicated combustion reactions, a chemical equation would be given. We are only expected to memorize the "typical" combustion equation for this first test.

David Zhang 1B
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Re: Combustion Equation

Postby David Zhang 1B » Thu Jun 27, 2019 7:15 pm

The equation should be balanced so that there are the same elements on both side of the equation. If there is nitrogen present in the fuel, it would also be present in one of the products of the combustion equation.

Chem_Mod
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Re: Combustion Equation

Postby Chem_Mod » Fri Jun 28, 2019 7:50 am

If a problem states it is combustion or that the compound is burned, you must know that the reactants are the compound with O2 and that the products are carbon dioxide and water, because combustion reactions are very common.

duenezjuleny1D
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Re: Combustion Equation

Postby duenezjuleny1D » Fri Jun 28, 2019 10:38 am

Yes in combustion reactions there will always be oxygen and a hydrocarbon as reactants and will always produce CO2 and H2O. Sometimes they can add nitrogen, N, but I believe you would be told to depending on the problem.

Kevin To 1B
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Re: Combustion Equation

Postby Kevin To 1B » Fri Jun 28, 2019 1:57 pm

Erin Kim 2G wrote:generally the equation is CxHyOz + O2= CO2 + H20


Combustion reactions are most of the time with hydrocarbons and according to the definition, hydrocarbons at their basic form do not have oxygen. Therefore, the basic equation of a combustion reaction with hydrocarbons should just be CxHy + O2 → CO2 + H2O.

somyapanchal1D
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Re: Combustion Equation

Postby somyapanchal1D » Sun Jun 30, 2019 2:08 pm

In a combustion reaction there is always of hydrocarbon molecule and oxygen gas in the reactants. These two reactants combine to form carbon dioxide and water molecules as the products. I heard this is a very important concept to understand, so I'd go over some problems related to it in the homework!

rachel liu 3k
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Re: Combustion Equation

Postby rachel liu 3k » Mon Sep 30, 2019 5:54 pm

Dr. Lavelle said in class today...if hydrogen, carbon, and oxygen are present in the reactants, it is most likely a combustion reaction!

Jasmine 3L
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Re: Combustion Equation

Postby Jasmine 3L » Mon Sep 30, 2019 8:03 pm

Yes! Because combustion reactions mean the hydrocarbon (the CH variant reactant) is oxidized (reacts with oxygen) to break down the hydrocarbon and produce carbon dioxide and water.

905385366
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Re: Combustion Equation

Postby 905385366 » Mon Sep 30, 2019 10:23 pm

Another tip for balancing combustion equations would be that if you end up with a 1/2 coefficient, multiply all the coefficients by 2 to get the balanced equation.


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