One important factor in dealing with HC surface and ground water supplies is the differences in surface water flow and tributary ground water flow. In Nebraska, for example, stream-flow may move twenty-five miles per day or more, whereas ground water flow may be 300 feet per year.hen the aquifer is, say, twenty feet higher than the stream, the ground water will flow toward the stream more quickly than if the aquifer is only one foot higher than the stream.
Why Water Is Called the Universal Solvent Water dissolves more chemicals than any other solvent because its polar nature gives each molecule a hydophobic (water-fearing) and hydrophilic (water-loving) side.
Water is the safest solvent in the nail industry. In fact, water is called the universal solvent because it dissolves more things than any other known substance. But if water dissolved nail polish, the nail industry would be dead. The second safest solvent used in salons is acetone. That's why it is sold for this purpose. It is true that there are much faster acting solvents, but they are not safe enough for use in the salon or the home.