Va rogg !
Completeaza ecuatiile reactiilor Fe2O3+H2=?+?

?+Fe2=Al2O3+?
Fe+?=FeS
Fe+Cl2=?
Fe+H2O=?+?
Fe+H2O+?=Fe(OH)3
Al+Fe3O4=?+?
Fe+O2=?
Fe +?=FeSO4+H2
Fe +?=Cu+?
Fe+?=Pb+?

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