nitrogen and oxygen can combine in two ratios to form gaseous compounds NO2 and N2O.......?

Question

use electronic resources two compare two physicla properties and one chemical property of these compounds..

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gahhhh im so dumb.. can anyone help?

Answer 1

1) Chemical

2NO2 --> N2O4

N2O4 + H2O --> HNO2 + HNO3

ref: http://en.wikipedia.org/wiki/Dinitrogen_tetroxide

2) Physical

a) IR Both molecules should have very different and characteristic spectra.

NO2 would have distinctive N=O stretching bands,

whereas N2O would has a distincting N=N stretching band.

b) NO2 is a yellow fuming pungent gas.
N2O is a colorless odorless gas.

Answer 2

Do an internet search (Wikipedia?) on

nitrogen dioxide and

dinitrogen monoxide.