Now continue asking:
The sugested mechanism this reaction is radical chain mechanism as follows:
R-COO:-Ag+ + Br2--> R-COOBr + AgBr
RCOOBr very unstable intermediate and decompose:
R-COOBr--> R-COO. + Br.
R-COO. --> R. + CO2 (something similar as the Kolbe method electrolyzis R-COO:Na+)
R. + R-COOBr--> R-Br + R-COO.
My question is if possible recombination reactions like:
R. + R. --> R-R
R. + Br. --> R-Br (you'll say what method will prove the R or Br source at the end R-Br product
R. + R-COO. --> R-COOR
Thank you for the help