Al+so4=h2+al2(so4)3 CaO+PO5=Ca3(SO4)3 Zn+FeCl3=ZnCl2+Fe Fe+Cl2=FeCl2

Question

Al+so4=h2+al2(so4)3
CaO+PO5=Ca3(SO4)3
Zn+FeCl3=ZnCl2+Fe
Fe+Cl2=FeCl2

Answer 1

2Al+3H2so4=3h2+al2(so4)3
3CaO+P2O5==Ca3(PO4)2
3Zn+2FeCl3=3ZnCl2+2Fe
2Fe+3Cl2=2FeCl3