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Manganese commonly occurs in nature as a mineral. The extraction of manganese from the carbonite mineral rhodochrosite, involves a two-step process. In the first step, manganese (II) carbonate and oxygen react to form manganese (IV) oxide and carbon dioxide: 2 MnCO3(s) + O2(g) → 2MnO2(s) + 2CO2(g) In the second step, manganese (IV) oxide and aluminum react to form manganese and aluminum oxide: 3 MnO2(s) + 4 Al(s) → 3 Mn(s) + 2 Al2O3(s) Write the net chemical equation for the production of manganese (II) carbonate, oxygen and aluminum. Be sure your equation is balanced.