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Salt water chlorination is a process that uses dissolved salt (1000–4000 ppm or 1–4 g/L) for the chlorination of swimming pools and hot tubs.The chlorine generator (also known as salt cell, salt generator, salt chlorinator, or SWG) uses electrolysis in the presence of dissolved salt to produce chlorine gas or its dissolved forms, hypochlorous acid and sodium hypochlorite, which are already ...
Notable For Dummies books include: DOS For Dummies, the first, published in 1991, whose first printing was just 7,500 copies [4] [5] Windows for Dummies, asserted to be the best-selling computer book of all time, with more than 15 million sold [4] L'Histoire de France Pour Les Nuls, the top-selling non-English For Dummies title, with more than ...
A mnemonic is a memory aid used to improve long-term memory and make the process of consolidation easier. Many chemistry aspects, rules, names of compounds, sequences of elements, their reactivity, etc., can be easily and efficiently memorized with the help of mnemonics.
series) is a product line of how-to and other reference books published by Dorling Kindersley (DK). The books in this series provide a basic understanding of a complex and popular topics. The term "idiot" is used as hyperbole, to reassure readers that the guides will be basic and comprehensible, even if the topics seem intimidating.
The earliest hot tubs were calderas in which hot stones were placed to heat the water. [citation needed] Therma in Ikaria has been a very popular place particularly for hydrotherapy ever since the 4th century B.C. [2] The remains of wrecked marble bathtubs along with a prehistoric aqueduct that have been unearthed from this area bear ample testimony of the place's popularity in the ancient times.
Over 1,200 (and growing) books published by the Metropolitan Museum of Art, New York, up to c. 2009, fully available to download as PDFs (though content is still copyrighted) from the Thomas J. Watson Library at the MMA. Exhibition and collection catalogues, many very large and well-illustrated, and much else.
Download as PDF; Printable version; In other projects Wikimedia Commons; ... move to sidebar hide. Help. Books about chemistry, the scientific study of the ...
When multiple chemicals are applied to the same surface without full removal of the earlier substance, the chemicals may interact. This interaction may reduce the efficiency of the chemicals applied (such as a change in pH value caused by mixing alkalis and acids) and in some cases may even emit toxic fumes.