7. How many moles of FeCl3 are needed to produce 805 grams of
MgCl2?
A. 157 moles
B. 450 moles
C. 5.64 moles
D. 7.35 moles

the answer to your question is c.

if you read the house of usher you should know that the house was haunted

that's what i got you can count the number of atoms

it is the most commonly accepted one

b) nuclear ive learned that in a pedtrodic table