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Twine showing component strands. Twine is a strong thread, light string or cord composed of string in which two or more thinner strands are twisted, and then twisted together . The strands are plied in the opposite direction to that of their twist, which adds torsional strength to the cord and keeps it from unravelling.
Acid Chloride Preparative Route for Nylon-6,10, which is often used in the nylon rope trick. The nylon rope trick is a scientific demonstration that illustrates some of the fundamental chemical principles of step-growth polymerization and provides students and other observers with a hands-on demonstration of the preparation of a synthetic polymer.
precursor to many other silver compounds; commonly used in inorganic chemistry to abstract halides Sodium amide: used in the industrial production of indigo, hydrazine, and sodium cyanide; [5] used for the drying of ammonia; used as a strong base in organic chemistry Sodium azide
This glossary of chemistry terms is a list of terms and definitions relevant to chemistry, including chemical laws, diagrams and formulae, laboratory tools, glassware, and equipment. Chemistry is a physical science concerned with the composition, structure, and properties of matter , as well as the changes it undergoes during chemical reactions ...
Pages in category "Chemistry experiments" The following 9 pages are in this category, out of 9 total. This list may not reflect recent changes. F. Flubber (material) M.
This category is devoted to simple classroom experiments as part of Chemistry education. Pages in category "Chemistry classroom experiments" The following 25 pages are in this category, out of 25 total.
Typically, a number of equally valid SMILES strings can be written for a molecule. For example, CCO, OCC and C(O)C all specify the structure of ethanol. Algorithms have been developed to generate the same SMILES string for a given molecule; of the many possible strings, these algorithms choose only one of them.
Refining is used primarily in the petroleum industry, whereby crude oil is heated and separated into stages according to the condensation points of the various elements. Distillation, widely used in petroleum refining and in purification of ethanol separates volatile liquids on the basis of their relative volatilities. There are several type of ...