Can anybody help me and get me the answer so i can finish my last question which is this one

Single Covalent Bond = 2 Electrons

Double Covalent bond = 4 Electrons

Triple Covalent Bond  =3 Pairs of electrons

Explanation:

The balanced chemical reaction is:

2 Al (s) + 3 Fe(NO3)2 (aq) = 3 Fe (s) + 2 Al(NO3)2 (aq)

The ratios or the coefficients between the reactants and the products will be used for further calculations.

305 g Fe(NO3)2 solution (.755) = 230.275 g Fe(NO3)2

 230.275 g Fe(NO3)2 ( 1mol / 179.87 g) ( 3 mol Fe / 3 mol Fe(NO3)2) ( 55.85 g / mol) = 71.500 g Fe