WebFeb 13, 2013 · metal. The two methods require the same investment and are capable of producing the same amount of gold each day. If the extracted gold can be sold for $350 per ounce, which method of extraction should be used? Assume that the supply of ocean water is unlimited. Work this problem on the basis of profit per ounce of gold extracted. (2.4) 2-44. WebDec 6, 2024 · Electrolysis is method used with these cases of metals. Metal in form of molten form is used. Class 3: Electrolysis and reduction in used for reactive metals with high valency. Class 4: Roasting and reduction …
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WebMining refers to the process of removing the metal in its free or combined state from Earth ’ s surface. The two most common forms of mining are surface and subsurface mining. In the former case, the metal or its ore can be removed from the upper few meters of Earth ’ … WebThe method used to extract a given metal from its ore depends upon the reactivity of the metal and how stable the ore is. In each case the metal ions in the compound gain electrons to form atoms ... WebApr 13, 2024 · Toxic heavy metal accumulation is one of anthropogenic environmental pollutions, which poses risks to human health and ecological systems. Conventional heavy metal remediation approaches rely on expensive chemical and physical processes leading to the formation and release of other toxic waste products. Instead, microbial … nutcracker memorabilia