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5e matière

caractéristiques des états ; reconnaissance de l'eau , mélange

QuestionAnswer
Liquides miscibles et non miscibles - 2 liquides forment : - un mélange homogène - un mélange hétérogène
Mélange homogène et hétérogène - On ne peut pas distinguer à l'œil nu les constituants - On distingue à l'œil nu au moins 2 constituants
Corps pur un seul constituant
Hydraté qui contient de l'eau
Anhydre qui ne contient pas d'eau
Etat solide (2 caractéristiques) A une forme propre Peut être saisi entre les doigts (état ?)
Etat liquide (2 caractéristiques) Prend la forme du récipient Surface libre plane et horizontale (état ?)
Etat gazeux (2 caractéristiques) Prend tout l'espace disponible Compressible et expansible (état ?)
4 règles de la schématisation - Règle et crayon - Titre - Légende - simple et clair
Identifier la présence d'eau (test ?) Le sulfate de cuivre anhydre (blanc) devient bleu (permet d' ?)
Created by: eraxit
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