I don't understand how hard water is formed?
2007-09-15 16:00:14 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
Hard water is formed naturally by the presence of dissolved salts, usually calcium salts, in the water.
2007-09-15 16:04:14 · answer #1 · answered by vv 6 · 1⤊ 0⤋
"Soft" water, such rain water or distilled water, has little dissolved in it. When water trickles over minerals like limestone, some dissolves in the water. It you were to pour fresh (soft) water on a piece of glass and let it evaporate, you would see few, if any, minerals left as crystals. Hard water would leave visible crystals.
Various minerals may cause different problems in water:
o Iron leaves red or brown stains on porcelain fixtures and clothes.
o Manganese leaves brown or black stains.
o Calcium reacts with soap, forming a whitish "curd" or precipitate, which makes laundering harder.
o Arsenic and other poisonous mineral may also be found in groundwater; New Hampshire has that problem in some areas.
2007-09-15 16:15:37 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Well, you put water in a freezer, and it turns into hard water! :D
2007-09-15 16:04:48 · answer #3 · answered by BotanyDave 5 · 1⤊ 1⤋
pie
2007-09-15 16:03:41 · answer #4 · answered by Laurie G 2 · 0⤊ 0⤋