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ElenaDinu1
a fost răspuns

Calculeaza formula bruta a substantelor:

A/ 19,88% C; 2,76% H; 17,68% O; 59,66% Ag.

B/ C:H= 9:1.

C/ A:H:Br= 6:1:40.

D/ C:H:O= 9:1:16.