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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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9 gen 1860 anni - 3) Scientist met in one of the first international chemistry conferences and decided hydrogen to be given the weight of one and all other elements would be compared to it
Aggiunto al nastro di tempo:
Kashif,Aaron,Felix,Nestor
By
Kashif Naseer
25 ott 2017
0
0
565
Data:
9 gen 1860 anni
Adesso
~ 165 years ago
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