In each part, two solutions are mixed together. If a reaction occurs, write the balanced chemical equation and the net ionic equation for the reaction. If a reaction does not occur, simply write N.R. a. K2CO3(aq) is mixed with Pb(NO3)2(aq). b. NH4Br(aq) is mixed with AgClO3(aq). c. CaCl2(aq) is mixed with NaCH3CO2(aq).