Comparing E932 - Nitrogen oxide vs E938 - Argon
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Popular questions
Is nitrogen oxide a greenhouse gas?
Nitric oxide (NO), often called “nitrogen oxide,” is not considered a significant greenhouse gas; nitrous oxide (N2O, a different nitrogen oxide used as E942) is a potent greenhouse gas.
What is the formula for nitrogen oxide?
The common “nitrogen oxide” in this context is nitric oxide, with the formula NO (other nitrogen oxides include NO2 and N2O).
Where does nitrogen oxide come from?
It’s formed during high‑temperature combustion (e.g., engines, power plants) and produced industrially by catalytic oxidation of ammonia (Ostwald process).
Is nitrogen oxide harmful?
Yes—NO and NO2 are respiratory irritants, and high exposures can damage the lungs; they are regulated air pollutants.
What does a catalytic converter turn nitrogen oxide into?
Automotive three‑way catalytic converters reduce NOx primarily to nitrogen (N2) and oxygen (O2), often yielding N2, CO2, and H2O using CO and hydrocarbons as reductants.
What element has 18 electrons?
Argon (E938); a neutral argon atom has 18 electrons because its atomic number is 18.
What element has 18 neutrons?
The argon isotope argon‑36 (36Ar) has 18 neutrons (36 − 18 = 18).
What element has 18 protons?
Argon—its atomic number is 18, meaning it has 18 protons.
What element has 17 protons and 18 neutrons?
Chlorine‑35; that nucleus (17 protons, 18 neutrons) belongs to chlorine, not argon.
Which element has 18 electrons?
Argon (E938); a neutral argon atom carries 18 electrons.