Jazzyw83072go Jazzyw83072go Chemistry Answered Based on Reference Table J, which two reactants react spontaneously? 1. Mg(s) + ZnCl2(aq) 2. Cu(s) + FeSO4(aq) wa 3. Pb(s) + ZnCl2(aq) 4 Co(s) + NaCl(aq)