[vc314]

What are the products of the reaction?
I got Sodium Chloride, Water and Barium Sulphate.
I've never done a question with a hydrate before, so what happens to it in the reaction?

[Borek]

Hydrate means water built into crystalline structure. When you dissolve hydrate, water molecules go into solution (that's not always exact true, but it is a good starting point) - and become indistinguishable from other water molecules.

[vc314]

So then my answer would be correct? Well without the H2O in the products and if so, then how can the equation balance?

[Borek]

To balance equation simply put water on the products side.