Question

No->no2->nano3->nano2

Answer 1

2NO + O2 →  2NO2
2NaNO2 + O2 → 2NaNO3
2NaNO3 (температура) → 2NaNO2 + O2 

Answer 2

+2-2 0 +4-2
2NO+O2=2NO2
+1+4-2 0 +1+6-2
2NaNO2+O2=2NaNO3
+1+6-2 t +1+4-2 0
2NANO3=2NaNO2+O2

Answer 3

It looks like you've provided a sequence of chemical compounds: NO, NO2, NANO3, NANO2.

These compounds seem to represent a progression where nitrogen and oxygen atoms are combined in different ways.

1. NO: Nitric Oxide
2. NO2: Nitrogen Dioxide
3. NANO3: Sodium Nitrate (or Nitrate of Sodium)
4. NANO2: Sodium Nitrite (or Nitrite of Sodium)

Nitric oxide (NO) and nitrogen dioxide (NO2) are both nitrogen-oxygen compounds, with different oxidation states of nitrogen. Sodium nitrate (NANO3) and sodium nitrite (NANO2) are salts formed from the combination of nitric acid and sodium hydroxide, containing the nitrate (NO3-) and nitrite (NO2-) ions, respectively.

Is there something specific you would like to know or discuss about these compounds?