[matermultorum]

B₂O₃(s) + CaF₂(s)  BF₃(g)+CaO(s)

Maybe this is a different reaction that has been taught thus far, or maybe I don't understand. I am wanting to review the classification of reactions anytime I am doing something else with an equation, but since that isn't the point of the problem I don't have answers for this.

This isn't acid base(no water product, no H⁺ ions), precipitation(no aqueous solutions), or oxidation reduction(no electron transfer) as near as I can tell. 

Thanks

[chenbeier]

Boron oxide is an acid anhydride. Check which acid it refers to.

The acid push out a gaseous product here boron fluoride.
 
The reaction you can compare if you add hydrochloric acid to Carbonate. Carbon dioxide will be developed.

[matermultorum]

I'm not sure what you mean by "check which acid it refers to". 

When the text discussed acid-base reactions it only mentioned the presence of H⁺ ions so this is an acid reaction but not one that the text covered?  Is this an Acid-base reaction or just an acid reaction of another kind?

[chenbeier]

boron oxide refers to boric acid H₃BO₃

This is also acid base reaction.

[Borek]

It really depends on how you want to define acid/base reaction.

The most basic definition calls just for an acid and a base, say NaOH and H₂SO₄, and production of water during the neutralization.

But, Na₂O is a basic oxide - that is, one that will produce base when reacting with water. SO₃ is an acidic oxide, that is, one that will produce an acid when reacting water. So, the reaction

Na₂O + SO₃ Na₂SO₄

can be thought of as another kind of acid/base reaction. Note: there are also two other, intermediate possibilities (NaOH+SO₃ and Na₂O+H₂SO₄).

[matermultorum]

Thank you both for your help.