The incomplete table below shows selected characteristics of different types of bonds.

Row
Bond
Cause
Physical property of compound

1
?
Electron sharing among many atoms
Ductile

2
?
Electron sharing between two atoms
Brittle

3
?
?
Brittle

What type of bond is most likely being represented in row 1?
ion-dipole
ionic
metallic
covalent

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.