This is an oxidation-reduction reaction.
It is an eothermic type of reaction.
An exothermic chemical reaction.
Fe
Carbon
That is a synthesis reaction, also called a combination reaction.
This reaction is a combination reaction, where multiple reactants combine to form a single product.
I suppose that you think to synthesis reaction.
Synthesis E + C > C E + E > C
This is a synthesis reaction.
It's a chemical reaction.
Synthesis
Acid base reaction
This is an oxidation-reduction reaction.
Combustion reaction
decomposition reaction
This a synthesis reaction; sodium chloride is a salt with ionic bond.