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L’air : Corps pur ou mélange?

L’air : Corps pur ou mélange?. I) Distinction corps pur et mélange. Un mélange contient des substances de nature différentes. Un corps pur ne contient qu’une seule substance. II) Qu’en est-il pour l’air?. 1) Approche historique. Visualisation d’une vidéo extraite su site « Le site TV ».

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L’air : Corps pur ou mélange?

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  1. L’air : Corps pur ou mélange?

  2. I) Distinction corps pur et mélange Un mélange contient des substances de nature différentes. Un corps pur ne contient qu’une seule substance.

  3. II) Qu’en est-il pour l’air? 1) Approche historique Visualisation d’une vidéo extraite su site « Le site TV ». 2) A retenir

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