Hydrates are compounds that incorporate water molecules into their fundamental solid structure. In a hydrate (which usually has a specific crystalline form), a defined number of water molecules are associated with each formula unit of the primary material. Gypsum is a hydrate with two water molecules present for every formula unit of CaSO4.
LOS ANGELES, California (CNN) -- After losing out five times, director Martin Scorsese was awarded his first Oscar on Sunday for his mob informer movie The Departed.. And moments after Scorsese walked offstage, clutching his Oscar, The Departed was named best picture.
Katharine Hepburn had the most Oscar wins for a performer, with four. Daniel Day-Lewis is the only person to have three Best Actor Oscars. Tatum O'Neal is the youngest person to ever win an Oscar at 10 years, 148 days old.