Carbon's atomic number is 6. this means that it has electrons. after completing the first energy level, carbon has valence electrons and can form bonds.

a) 6 electrons - because atomic number is the same as the electron number

b) 4 - because 6-2=4

c) Covalent bonds - it needs 4 more electrons for a full outer shell.

i would say b

explanation:

but i think i would need more information than that

answer:

the reaction is type of combination reaction.

explanation:

on the product side, there are 2 molecules of bonded to fe   which means one atom of fe are combined two molecules of . so, balanced chemical equation becomes :

this reaction follows the reaction type of combination reaction. a combination reaction is defined as chemical reaction in which reactants combines together to form a single product.