Закончите уравнения реакции 1.Zn+H2SO4(p)= 2.CuO+Al= 3.Cu+AgNO3= 4.Fe+HCl (p)=
1.Zn+H2SO4(p)= ZnSO4 + H2 2.3CuO+2Al= Al2O3 + 3Cu 3.Cu+2AgNO3= Cu(NO3)2 + 2Ag 4.Fe+2HCl (p)=FeCl2 + H2