September 2018 2 11 Report

uzupełnij współczynniki w reakcjach chemicznych Mg + O2 ->MgO Al +O2 ->Al2O3 H2 +Cl2 ->HCl Fe2O3 + H2 -> Fe+H2O NH3 + O2 -> N2 + H2O Pb3O4 + h2 -> Pb+H2O


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