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PREHISTORIA E HISTORIA - PowerPoint PPT Presentation

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PREHISTORIA E HISTORIA

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Cobre: punto de fusi n bajo. BRONCE: bajo punto de fusi n del ... 7 metales: oro, plata, cobre, esta o, plomo, mercurio, hierro. 2 no metales: azufre, carbono ... – PowerPoint PPT presentation

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Date added: 6 January 2010
Slides: 10
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