Moderately reactive metals in the middle of the activity series include iron, zinc, lead, and copper. They are typically present as sulphides or carbonates in nature.
What are the moderately reactive metals in the middle of the activity series, and in what forms are they usually present in nature?
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Moderately reactive metals in the middle of the activity series include metals like iron, zinc, copper, and nickel. These metals are often found in nature as ores, which are compounds containing the metal combined with other elements. For example, iron is commonly found as hematite (Fe₂O₃) or magnetite (Fe₃O₄), zinc as sphalerite (ZnS), copper as chalcopyrite (CuFeS₂), and nickel as pentlandite [(Fe,Ni)9S8]. Extracting these metals involves various processes, such as roasting, smelting, and refining, to obtain the pure metal from their respective ores.