Question

N2-NH3-NO-NO2-NaNO2 | | (HN4)2SO4-NH3. | HNO3 | No2

Answer 1

N2 + 3H2 = 2NH3 
4NH3 + 5O2 = 4NO + 6H2O 
2NO + O2 = 2NO2 
4NO2 + O2 + 2H2O = 4HNO3 
2HNO3 + CuO = Cu(NO3)2 + H2O

Answer 2

It seems like you've provided a sequence of chemical reactions. Let's break it down step by step:

1. N2 → NH3 This represents the conversion of nitrogen gas (N2) into ammonia (NH3) through a process called nitrogen fixation, which is a crucial step in making nitrogen available for living organisms.

2. NH3 → NO → NO2 Ammonia (NH3) is first converted into nitric oxide (NO) through a process known as oxidation. Nitric oxide can further react with oxygen in the air to form nitrogen dioxide (NO2).

3. NaNO2 + HN4 → (NH4)2SO4 Sodium nitrite (NaNO2) reacts with ammonium (NH4) to produce ammonium sulfate ((NH4)2SO4). This is an example of a double displacement reaction.

4. NH3 + HNO3 → NH4NO3 Ammonia (NH3) reacts with nitric acid (HNO3) to form ammonium nitrate (NH4NO3), which is a common nitrogenous fertilizer.

5. NO2 This is likely a product of the previous reaction, as mentioned in step 2.

Please note that the reactions may be incomplete as there are no specific reaction conditions and catalysts mentioned. Additionally, "(HN4)2SO4" is an incorrect notation; it should be "(NH4)2SO4" to represent ammonium sulfate correctly. If you have any specific questions about these reactions or need further clarification, feel free to ask!