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Chemical substances are often called 'pure' to set them apart from mixtures. A common example of a chemical substance is pure water; it has the same properties and the same ratio of hydrogen to oxygen whether it is isolated from a river or made in a laboratory. Other chemical substances commonly encountered in pure form are diamond (carbon), gold, table salt (sodium chloride) and refined sugar (sucrose). However, simple or seemingly pure substances found in nature can in fact be mixtures of chemical substances. For example, tap water may contain small amounts of dissolved sodium chloride and compounds containing iron,. | The Project Gutenberg EBook of Flatland A Romance of Many Dimensions Illustrated by Edwin A. Abbot This eBook is for the use of anyone anywhere at no cost and with almost no restrictions whatsoever. You may copy it give it away or re-use it under the terms of the Project Gutenberg License included with this eBook or online at WWW.gutenberg.net Title Flatland A Romance of Many Dimensions Illustrated Author Edwin A. Abbot Release Date March 10 2008 EBook 201 Last updated August 9 2012 L anguage Engli sh START OF THIS PROJECT GUTENBERG EBOOK FLATLAND Flatland A Romance of Many Dimensions Edwin A. Abbott 1838-1926. English scholar theologian and writer. The Project Gutenberg EBook of Flatland A Romance of Many Dimensions Illustrated by Edwin A. Abbot This eBook is for the use of anyone anywhere at no cost and with almost no restrictions whatsoever. You may copy it give it away or re-use it under the terms of the Project Gutenberg License included with this eBook or online at www.gutenberg.net Title Flatland A Romance of Many Dimensions Illustrated Author Edwin A. Abbot Release Date March 10 2008 EBook 201 Last updated August 9 2012 Language English START OF THIS PROJECT EBOOK FLATLAND GUTENBERG Flatland A Romance of .