ms=10 g sol HCl
c=36,5% sol HCl
md=?
=>c/100=md/ms=>md=(c*ms)/100=>md=(36,5*10)/100=>md=3,65 g HCl
Me=metalul divalent
3,25 g 3,65 g
Me + 2HCl = Mecl2+ H2
1 mol 2 molI
1*x= x g 2*(1+35,5)=73 g
3,25/x=3,65/73=>x=(3,25*73)/3,65=>x=65 g=>Me este Zn
Raspuns final: c) Zn