staphadelusma staphadelusma
  • 21-04-2024
  • Chemistry
contestada

-On combine 75 grammes d'acide phosphorique avec le calcium.
a) Ecrivez L'équation équilibrée de la réaction
b) Calculez la masse du sel qui se forme?
c) Déterminez la masse de métal utilisé ?
d) Trouvez le volume d'hydrogène qui se dégage dans les CNTP?

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