What are the Oxidation and Reducation reactions for these equations :

Question

BaCl2 + NaHCO3 -> BaCO3 + NaCl + HCl

(carbon is the reduction reaction, but I don't know what the oxidation reaction is)

CaCO3 + HCl -> CaCl2 + CO2 + H2O

Answer 1

Neither equation you have written is a redox equation. Check them out. Nothing changes oxidation state (at least I don't think so unless you can point them out to me).