Exercițiul 6. Repede va rog

M,Fe=56g/mol
M,Fe2O3= 160g/mol
1mol..................2mol sau, in grame
2Al + Fe2O3 -----> 2Fe + Al2O3
....160g.............2x56g
32,4g.........................x
x=m,Fe=32,4x112/160g=.....................calculeaza !!!!!