GRISALES JUAN CARLOS

Colombia

GRISALES JUAN CARLOS

Joined: 24/09/2009

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Recent Activity

OZONO commented on loreluna's presentation "CONCEPTOS BASICOS DE QUIMICA"

3 months ago

CONCEPTOS BASICOS DE QUIMICA

Primera parte del Modulo 1: Nociones basicas de Quimica. Materia. Sistemas Materiales. Atomo y molecula.

Views: 5665

Comment (18)

OZONO : cordial saludo Muy buena presentaci�n. Me podr�as enviar una copia. gracias.

3 months ago

anaelisac : Hola: Muy buena presentacion, Te agradecer�a si me envias una copia a anaelisa72@hotmail.com

1 week ago

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