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
Water privatization in the United States for both water and energy produced by water: a growing population particularly in the sprawling Atlanta metropolitan area, recreational users of water, agricultural irrigators, power generators, and industries like pulp and paper mills, textiles, chemical manufacturing facilities, and the mining industry. The experiences in Detroit provide some perspective on what happens with corrupt government related to public or private participation. Public officials were indicted for illegally steering public contracts to specific private companies. These companies also were accused of questionable billing practices. According to the Detroit Free Press, The sprawling water system (Detroit's), with more than 4 million customers and