Properties of water equal to that of the hydrogen ion (), which gives a pH of 7 at 25 °C. Action of water on rock over long periods of time typically leads to weathering and water erosion, physical processes that convert solid rocks and minerals into soil and sediment, but under some conditions chemical reactions with water occur as well, resulting in metasomatism or mineral hydration, a type of chemical alteration of a rock which produces clay minerals. It also occurs when Portland cement hardens. Water ice can form clathrate compounds, known as clathrate hydrates, with a variety of small molecules that can
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