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Chapitre 2.1

Modèles de la Matière

TermDefinition
Atome Plus petite particule qui compose la matière.
Composé Substance pure ayant au moins deux éléments différents.
Élément Substance pure ayant un seul type d'atome.
Molécule Particule ayant au moins deux atomes.
Substance pure Substance ayant le même type de particule.
Mélange Substance ayant des types de particules différentes.
Hétérogène Mélange avec particules visibles.
Solution ( Homogène) Mélange avec des particules qui deviennent invisibles.
L'eau salée est un mélange Solution ( homogène)
Une salade aux fruits est un mélange Hétérogène
Oxygène est un élément
L'eau ( H2O ) est un composé
Le sel ( NaCl) est un composé
Hydrogène est un élément
Created by: gmcm
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