Follow these instructions:
Add the atomic numbers of the two substances used in the experiment.
Add 29, and you'll get the number you're looking for!
Suivez les instructions :
Additionnez les numéros atomiques des deux produits utilisés dans l'expérience
Ajoutez 29 et vous obtiendrez le numéro recherché !


Chemistry was not my best subject at school but with a bit of help from Hubby I've travelled to the Moselle, I've brought Hubby to as we have travelled through but never stayed
RépondreSupprimerFirst, I'll head towards the Moselle Department.
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