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4e matière

Carbone (symbole et modèle?) C ; bille de couleur noir (Atome?)
Oxygène (symbole et modèle?) O ; bille de couleur rouge (Atome?)
Hydrogène (symbole et modèle?) H ; bille de couleur blanche (Atome?)
Azote (symbole et modèle?) N ; bille de couleur bleu (Atome?)
Eau (formule chimique?) H2O (matière?)
Dioxyde de carbone (formule chimique?) CO2 (matière?)
Méthane (formule chimique?) CH4 (matière?)
Masse (évolution durant réaction chimique) )M.... est conservée car le type et le nombre d'atomes sont inchangés
Masse (évolution durant changement d'état ou dissolution?) M..... est conservée car le type et le nombre de molécule sont inchangés
Dissolution (définition?) Dispersion des molécules de soluté dans un solvant (ex : sucre dans l'eau)
Created by: eraxit