Making the world better, one answer at a time. There are sixteen (16) US cups in one U.S. gallon. There are sixteen (16) US cups in one U.S. gallon..
What can be Transmuted? Elements (air, water, earth, fire, shadow and mana), some metals (such as Iron to Gold), primal elements (elements that are converted in stacks to a more powerful single item) and some gems can be transmuted to other types of items.
If you use this transmute while in one of the new Cataclysm zones associated with the Elemental Planes, however, the element into which your Volatile Life will transform will be predetermined. This means, if you use Transmute: Living Elements while in Vashj'ir, you will always receive Volatile Water for your efforts.