Question

составьте уравнения реакций. .AL+O2 = Mg+o2= L1+O2= Fe2O3+Mg2= HCl+Ca= H2SO4+K= H3PO4+2N=

Answer 1

4 Al+3 O2 = 2 Al2O3

2 Mg+O2 = 2 MgO

4 Li+O2 = 2 Li2O

Fe2O3+3 Mg = 3 MgO+2 Fe

Ca+2 HCl = CaCl2+H2

2 K+H2SO4 = K2SO4+H2

H3PO4 + 4 N2 = PH3 + 4 N2O