Silver glance

Silver is widely distributed in sulfide ores of which silver glance (argentite), Ag2S, is the most important. Native silver is sometimes associated with these ores as a result of their chemical reduction, while the action of salt water is probably responsible for their conversion into hom silver , AgCl, which is found in Chile and New South Wales. The Spanish Americas provided most of the world s silver for the three centuries after about 1520, to be succeeded in the nineteenth century by Russia. Appreciable quantities are now obtained as a byproduct in the production of other metals such as copper. 

Glam-silber, n. polished silver (Min.) silver glance, argentite. -stahl, m. polished steel, -stkrke, /. gloss starch, -stoff, m. trade name of a cuprammonium rayon glazed or glossy fabric. 

Silber gare,/. silver refining, -gefaait, m. silver content, -gewinnung, /. extraction of silver, -glanz, m. silvery luster silver glance, argentite. 

These are very unreactive metals. Silver exists mainly as silver sulfide, Ag2S (silver glance). The extraction involves treatment of the pulverised ore with sodium cyanide. Zinc is then added to displace the silver from solution. The pure metal is obtained by electrolysis. Silver also exists to a small extent native in the Earth s crust. Gold is nearly always found in its native form (Figure 10.17). It is also obtained in significant amounts during both the electrolytic refining of copper and the extraction of lead. 

Silver sulphide 4082 Ag2S Argenttte silver glance sulchuret of silver vitreous silver. 

Occurs as a mineral, silver glance, and is formed by the action of sulphuretted hydrogen on oxide of silver, or indeed on silver itself, or any compound whatever. Polished silver is instantly tarnished by the minutest trace of sulphuretted hydrogen, so that coal-gas, which contains a mere trace of that gas, cannot be used in silversmith s shops. It would appear that the affinity of silver for sulphur is very powerful. 

The Ores, silver glance (Ag2S) and copper-silver glance (Ag2S.Cu2S) can be similarly brought into solution by treating with nitric acid followed by filtration. 

The most important ores are bismuthinite or bismuth glance and bismite. Peru, Japan, Mexico, Bolivia, and Canada are major bismuth producers. Much of the bismuth produced in the U.S. is obtained as a by-product in refining lead, copper, tin, silver, and gold ores. 

BUck, m. look, view, glance flash (Metal.) flashing (as of molten silver), fulgnration, "blick. ... 

At first glance, the equation appears to be balanced, because it has the same number of each kind of atom on each side. Flowever, each copper atom has lost two electrons, whereas each silver atom has gained only one. To balance the electrons, we have to balance the charge. Therefore, we need to write... 

Someone got to their pouches before I did. Quazza glanced briefly in the direction of Torre and his band. You may have been worth some silver to them, but not much while you are still alive, Alfeo Zeno. Dead, you would have brought them a second instalment. Dead or alive, it is not for you to hand out justice. A few days in the Leads will afford you protection against any second inexplicable attack and possibly refresh your memory of recent events. ... 

Answer Again, notice the single element as a reactant and a solution of an ionic compound as the other reactant. These are clues for a replacement. You should check to make sure that magnesium is capable of replacing silver in solution. A quick glance at the reduction potentials indicates that it will easily replace silver, so the reaction should be completed ... 

Cobalt bloom. Cobalt glance. Cobaltite See Erythrite See Cobaltite CoAsS Silver- 6-2 6-5 Cubic... 

Silver lining to every cbud, eh It came out sounding harsher than I d meant. He glanced at me. 

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