CLO3,AgNO3
H(+1)CL(-1), K(+1) OH(-1), Mn2 (+7) O7( -2), N(-3)H4(+1)N(+5)O3(-2), Ba(+2) NO3(-1), Zn(+2) Cl2(-2),Cu(+2)Br2(-1), H2(+1)S(-2), H(+1)Cl(+1)O(-2),C(+4)O2(-2), Ll2(+1)SO4(-2),Na3(+1)PO4(-3), Zn3(+2) PO4(-3), K(+1)Cl(+5)O3(-2), Ag(+1)N(+5)O3(-2)
а)CaO+N2O5=Ca(NO3)2
б)Na2O+SO3=Na2SO4
в)BaO+CO2=BaCO3
г)Fe2O3+3H2SO4=Fe2(SO4)3+3H2O
д)3Li2O+2H3PO4=2Li3PO4+3H2O
е)CuO+2HNO3=Cu(NO3)2+H2O
C6H5-CH3+3O=C6H5COOH+H2O
Ответ:
ZN+H2SO4--> 2ZNH2SO2