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Romy2408
@Romy2408
April 2022
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Bonjour pourriez-vous m’aider au plus vite :) ( 4ème) mercii d’avance:
Lorsqu’on verse du vinaigre blanc sur la coquille d’un œuf constitué de carbone de calcium, il se forme des bulles de dioxyde de carbone.
1. Qu’ est-ce qui permet d’affirmer qu’une transformation chimique a eu lieu ?
2. Quelles sont les réactifs de cette transformation ?
3. Citer un produit de la transformation.
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