Does this store sell ice? ➔ Gibt es in diesem Laden Eiswürfel?
Does this store sell ice cream? ➔ Gibt es in diesem Laden Eis?
Ice that is sold in a store will most likely be ice cubes (Eiswürfel). If you wanted to ask about, for example, the ice that has formed in their freezers, indeed you would have to explain that, there is no unambiguous word for that.