radical chemistry

Question 1

what is a radical

Answer 1

an unpaired electron with parallel spins
the singularly occupied molecular orbital (SOMO) is what further reacts

Question 2

Heterolysis

Answer 2

H-Cl –> H+ and Cl-
heterolytic cleavage

Question 3

Homolysis

Answer 3

H-Cl –> H. and Cl.
homolytic cleavage

Question 4

Initiation

Answer 4

generating radicals
0 –> 1 or more

Question 5

propagation

Answer 5

continuing the chain reaction
same on both sides

Question 6

Termination

Answer 6

2 radicals combine to quench the unpaired e-s
1 or more –> 0

Question 7

Branching

Answer 7

2 or more radicals produced when a radical reacts with a molecule
1–> 2

oxygen is a di radical species that allows for this to happen
as a result O radicals are paramagnetic

Question 8

Actions of a Halon 1211 fire extinguisher

Answer 8

1. smothers fire, deprives it of oxygen
2. takes energy from fire when creating radicals
3. terminates radicals that would other wise spread it