How do you balance Na+MgF2NaF+Mg?

1 Answer
Dec 7, 2015

2Na+MgF22NaF+Mg

Explanation:

The 2 F's on the left side (MgF2) imply the that right side must have 2 F's (or a multiple of 2).

The only F on the right side is in NaF
so to have 2 F's on the right side we will need 2 NaF's.
XXX2NaF+Mg

This gives us 2 Na's on the right side (2NaF)
which implies we will need 2 Na's on the left side.
XXX2Na+MgF22NaF+Mg

At this point the transformation becomes balanced:
On both sides we have:

2Na's
1Mg, and
2F's