cybrslyr cybrslyr 27-10-2021 Chemistry contestada The mixing of which pair of reactants will result in a precipitation reaction? NH4Cl(aq) + NH4I(aq) KClO4(aq) + (NH4)2S(aq) Na2SO4(aq) + Cu(NO3)2(aq) Ba(NO3)2(aq) + K2CO3(aq)