M,Mg= 24g/mol, M,Cl= 35,5g/mol
M,MgCl2= 24gMg+71gCl= 95g
MgCl2---->a) 1atMg : 2atCl---. > 1:2
b)24gMg:2x35,5gCl---> 24:71
c) 95g sare.......24gMg........71g Cl
100g..............x...................x
calculeaza x, y
la punctele urmatoare poti lucra singura ,folosind informatiile de la pct c
95g sare.....24gMg
95gsare.......71gCl