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
The Water Is Wide (song) of the verse starting "O Waly, Waly"). Benjamin Britten used the melody and verses of "The Water is Wide" for his arrangement—which does not have the "O Waly, Waly" verse, yet is titled "Waly, Waly". A different melody is used for the song "When Cockleshells turn Silver Bells", also subtitled "Waly, Waly". Yet another melody for "O Waly, Waly" is associated with the Lord Jamie Douglas lyric. A key ancestor is the lyric "Waly, Waly, Gin Love Be Bonny" from Ramsay's "Tea Table Miscellany" (1724), given below. This is a jumble of verses from other lyrics including "Arthur's Seat shall