Water of crystallization degree of hydration can be critical to the resulting chemical properties. For example, anhydrous RhCl is not soluble in water and is relatively useless in organometallic chemistry whereas RhCl•3HO is versatile. Similarly, hydrated AlCl is a poor Lewis acid and thus inactive as a catalyst for Friedel-Crafts reactions. Samples of AlCl must therefore be protected from atmospheric moisture to preclude the formation of hydrates. Crystals of hydrated copper(II) sulfate consist of [Cu(HO)] centers linked to SO ions. Copper is surrounded by six oxygen atoms, provided by two different sulfate groups and four molecules of water. A fifth water resides elsewhere
A Fish in the Water parallelism with the English idiom, 'a fish out of water'." A Fish in the Water A Fish in the Water (originally published as "" in 1993), is the memoir of Peruvian writer Mario Vargas Llosa, who won the Nobel Prize in Literature in 2010. It covers two main periods of his life: the first comprising the years between 1946 and 1958, describes his childhood and the beginning of his writing career in Europe. The second period covers his political involvement in later years culminating with his defeat against Alberto Fujimori in the Peruvian presidential elections. The book is divided in