Răspuns:
Explicație:
x 36,5 y
Mg+2HCl=MgCl²+H2
24 2*36,5 22,4
c=md*100/ms=>ms=c*md/100=18,25*200/100=36,5 g HCl
1 mol HCl= 1+25,5=36,5 g
1 mol Mg= 24 g
x/24=36.5/2*36,5=>x=24*36,5/36,5*2=12 g Mg(md)
p=s/m
80/100=12/m=>m=100*12/80=15 g Mg
36,5/2*36,5=y/22,4=>y=36,5*22,4/36,5*2=11,2