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Chemistry is the study of matter and energy and the interactions between them. Get facts for the elements in the periodic table. Find chemistry demonstrations and experiments and science fair projects. Get chemistry homework help with worked example ...

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The definitive online periodic table reference site including technical data, and photographs and descriptions of thousands of samples of the chemical elements.

Instructables is the Biggest How To and DIY community where people make and share inspiring, entertaining, and useful projects, recipes, and hacks.

How Products Are Made: Volume 1, Volume 2, Volume 3, Volume 4, Volume 5, Volume 6, and Volume 7

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Swedish Match develops, manufactures and sells market-leading brands in product areas Snus and snuff, Other tobacco products (US mass market cigars and...

Dictionary.com - the largest and most trusted free online dictionary. Instantly look up accurate and extensive definitions and word meanings, and hear audio pronunciations.