HELP ASAP PLZ

What is the AHsol for LiF it + F-? The lattice energy is -1.036 kJ/mol, the enthalpy of hydration for it is -499 kJ/mol, and
the enthalpy of hydration for F-is-431 kJ/mol. Use AHsol = -A Hat + AHhydr-

A: -968 kJ/mol
B: -106 kJ/mol
C: 106 kJ/mol
D: 1,966 kJ/mol

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.

the answer is c. nacl

i wish i could but this one is weird give me abc and i can solve it.