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Trioxide

A trioxide is a compound with three oxygen atoms. For metals with the M2O3 formula there are several common structures. Al2O3, Cr2O3, Fe2O3, and V2O3 adopt the corundum structure. Many rare earth oxid ...

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Equipo Didactalia

Wikipedia Article

Ferrous metallurgy

Ferrous metallurgy involves processes and alloys based on iron. It began far back in prehistory. The earliest surviving iron artifacts, from the 5th millennium BC in Iran and 2nd millennium BC in Chin ...

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Equipo Didactalia

Hipervinculo Química

Tostación de la pirita y lluvia ácida. (Selectivid...

Problema resuelto sobre Equilibrio ácido-base (Transferencia de cargas) que corresponde a un examen de Química de la prueba de selectividad. El enunciado es el siguiente: La pirita es un mineral cuyo ...