Răspunsuri

2014-10-02T21:15:27+03:00
Zn + 2 HCl ---> ZnCl2 + H2
65 g Zn........2*36,5 g HCl
65 g Zn.............x g HCl        x = 73 g HCl
c%=md/ms*100=>ms=73/36,5*100 = 200 g solutie

1 5 1