nitrogen (chapter 13)

Question 1

why is nitrogen so unreactive (2)

Answer 1

-it has an electronic configuration of 1s2,2s2,2p3, forming a triple covalent bond between 2 N atoms and this bond is very strong.
- it is non-polar

Question 2

what is the test for ammonia gas

Answer 2

damp red litmus turns blue

Question 3

state the shape of ammonia molecules

Answer 3

pyramidal 107

Question 4

what are environmental damages of nitrogen oxides?

Answer 4

acid rain and photochemical smog

Question 5

what are the 5 reactions forming acid rain? explain each one.

Answer 5

1. 2NO(g) +O2(g) ⇌ 2NO2(g) nitrogen(II) oxide is formed
2. NO2(aq) +H2O(l) +1.5 O2(g) →2HNO3(aq) further oxidation
3. SO3(g) + H2O(l) → H2SO4(aq)
4. SO2(g) + NO2(g) → SO3(g) + NO(g)
5. NO(g) + O2(g) → NO2(g) NO2 is regenerated

Question 6

what is PAN

Answer 6

peroxyacetyl nitrate

Question 7

effects of PAN

Answer 7

PAN affects the eyes and lungs and in high concentrations also affects plant life.

Question 8

give reaction of catalytic converter

Answer 8

2CO(g) + 2NO(g) → 2CO2(g) + N2(g)