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Free radical reaction

1. In a free radical reaction, the following step would be categorized as
CH3. + Br . ----------> CH3Br

a. Initiation
b. Propagation
c. Substitution
d. Termination

2. The heat of reaction (enthalpy change, delta H) for the following reaction is
I2 + CH4 -----------> CH3I + HI
a. 13 kcal/mol
b. 140 kcal/mol
c. -13 kcal/mol
d. -127 kcal/mol

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1. This reference is good for free radical reaction mechanism:
Here, the reaction of two free radicals to create a ...

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