How do you balance #Al + F_2 -> AlF_3#?
here F is unbalanced : on right hand side(product side) there are 3 F and on the left hand side there is 2F
use the L.C.M of the two numbers to balance on both sides
here L.C.M of (2,3)=6
so we try to get six F on both sides
now we need to balance Al
You balance it stoichiometrically: GARBAGE IN MUST EQUAL GARBAGE OUT.
A chemical reaction ALWAYS CONSERVES MASS AND CHARGE:
Is mass conserved in this representation? How? If you have to do calculations with this formula, to make it a little easier on yourself you could write: