Ciencias Sociales, pregunta formulada por luana9047, hace 11 meses

Señala si los siguientes materiales son sustancias puras o mezclas: puerta, mochila, planta, vapor de agua, lejía, jugo de naranja, oxigeno, colesterol, agua de mar, granito, ozono, dioxido de carbono, agua mineral, cobre.

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