Решите пжл! ZnCl2+NaOH= K2SO4+NaNO3= H2SO4+KOH= Na2S+HCI= Pb(NO3)2+NaS=
ZnCL2+2NaOH-->Zn(OH)2+2NaCL K2SO4+2NaNO3--> не идет Na2S+2HCL-->2NaCL+H2S H2SO4+2KOH-->K2SO4+2H2O Pb(NO3)2+Na2S-->PbS+2NaNO3