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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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buffyjo29 buffyjo29
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12 years ago
Combustion in automobile engines takes place when fuel and oxygen are combined and ignited in the cylinders of the engine. However, the air that provides the oxygen for combustion also introduces nitrogen into the engine.The nitrogen reacts with oxygen at the high temperatures present in the engine, producing nitrogen oxide compounds, which are a major componet of smog. In one of these reactions, nitric oxide, NO, reacts with oxygen,O2,to form nitrogen dioxide,NO2. Write the balance equation for this reaction.
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#1
12 years ago
We know our reactants and product:

NO + O2 ---> NO2

Now we just have to add stoichiometric coefficients to even out the amount of each element on each side:

2NO + O2 ---> 2NO2

Now both sides have 2 Nitrogen atoms, and 4 oxygen atoms (remember the coefficients distribute through the whole molecule).
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