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Expliquer en quelques lignes comment faire expérimentalement pour voir si un échantillon de matière est plus ou moins dense que l’eau
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The minerals found in bones are deposited by living cells called
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What is the difference between covalent bonds and ionic bonds? covalent bonds involve the sharing of electrons between atoms; ionic bonds involve the electrical attraction between charged atoms. covalent bonds involve the transfer of electrons between charged atoms; ionic bonds involve the sharing of electrons between atoms. covalent bonds involve the sharing of pairs of electrons between atoms; ionic bonds involve the sharing of single electrons between atoms. covalent bonds involve the sharing of electrons between atoms; ionic bonds involve the sharing of protons between charged atoms.
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Expliquer en quelques lignes comment faire expérimentalement pour voir si un échantillon de matière...
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