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Exercice 3 en ligne

A regarder pour préparer l'évaluation.
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Exercice 4 en ligne
Composition des molécules
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The Scale of the Universe 2
Zoom from the edge of the universe to the quantum foam of spacetime and learn about everything in between.
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acide chlorhydrique (HCl) et craie
acide chlorhydrique (HCl) et craie
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100,000 Stars
An interactive 3D visualization of the stellar neighborhood, including over 100,000 nearby stars. Created for the Google Chrome web browser.
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