Everything about gold price

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Gold is proof against most acids, however it does dissolve in aqua regia, a combination of nitric acid and hydrochloric acid, which kinds a soluble tetrachloroaurate anion. Gold is insoluble in nitric acid, which dissolves silver and foundation metals, a house which includes prolonged been utilized to refine gold and http://zoomgroups.com/userProfile/9695815


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