Flashcards
Chapter 2 - Water
Cards in this deck (8)
- 1Soft WaterWater containing no dissolved calcium and/or magnesium salts, so it easily forms a later with soap
- 2Hard WaterWater in which it is difficult to form a lather with soap
Water containing calcium and/or magnesium ions which react with soap to form scum - 3ScumThe precipitate formed when soap reacts with calcium or magnesium ions in hard water
- 4Soapless DetergentsA cleaning agent that does not produce scum when used with hard water
- 5Scale (limescale)The insoluble substance formed when temporary hard water is boiled
- 6Temporary Hard WaterHard water which is softened when it is boiled
- 7Permanent Hard WaterHard water whose magnesium and/or calcium ions are not removed when the water is boiled, thus remaining hard
- 8Ion-Exchange ColumnA water softener which works by replacing calcium and magnesium ions with sodium or hydrogen ions, removing the hardness
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- GCSE Chemistry (C3) Flashcards on Chapter 2 - Water, created by rosetinley on 01/12/2013.
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- rosetinley
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