Net Ionic Equations Key

Net-Ionic Equations Chemistry 110 a) Write a balanced equation for the reactants given. b) Include the physical states for all reagents: Assume that all reactions are in water. c) Write a total ionic equation d) Write the net-ionic equation hint: Use solubility rules,activity tables, and tables for strong bases and acids to write the equations! 1] Nickel (III)chloride + potassium phosphate --> Molecular equation Total ionic NiCl3(aq) + K3PO4(aq) ---> NiPO4(s) + 3 KCl(aq) Ni3+(aq) + 3 Cl-(aq) + 3K+(aq)+ PO43-(aq)-->NiPO4(s) + 3 Cl-(aq) + 3K+(aq) Ni3+(aq) + PO43-(aq) ---> NiPO4(s) Net ionic 2] Aluminum + Hydrobromic acid --> Molecular equation 2 Al(s) + 6 HBr(aq) ---> 2 AlBr3(aq) + 3 H2(g) Total ionic 2 Al(s) + 6 H+(aq) +6 Br (aq) ---> 2 Al3+(aq) + 6 Br (aq) + 3 H2(g) Net ionic 2 Al(s) + 6 H+(aq) ---> 2 Al3+(aq) + + 3 H2(g) 3] Sodium carbonate + silver nitrate --> Molecular equation Na2CO3(aq) + 2 AgNO3(aq) ---> Ag2CO3(s) + 2 NaNO3(aq) - Total ionic 2 Na+(aq) + CO32-(aq) + 2 Ag+(aq) + 2 NO3-(aq) ---> Ag2CO3(s) + 2 Na+(aq) + 2 NO3 (aq) Net ionic CO32-(aq) + 2 Ag+(aq) ---> Ag2CO3(s) 4] Silver hydroxide + carbonic acid --> Molecular equation 2 AgOH(s) + H2CO3(aq) ---> Ag2CO3(s) + 2 H2O(l) Total ionic SAME AS MOLECULAR Net ionic SAME AS MOLECULAR 5] Zinc + Stannic nitrate --> Molecular equation 2 Zn(s) + Sn(NO3)4(aq) ---> 2 Zn(NO3)2(aq) + Sn(s) - - Total ionic 2 Zn(s) + Sn4+(aq) + 4 NO3 (aq) ---> 2 Zn2+(aq) + 4 NO3 (aq) + Sn(s) Net ionic 2 Zn(s) + Sn4+(aq) ---> 2 Zn2+(aq) + Sn(s) 6] Potassium carbonate + aluminum nitrate --> Molecular equation B 3 K2CO3(aq) + 2 Al(NO3)3(aq) ---> Al2(CO3)3(s) + 6KNO3(aq) Total ionic Net ionic - - 2 K+(aq) + 3 CO32-(aq) +2 Al3+(aq) + 6 NO3 (aq) --> Al2(CO3)3(s) + 6 K+(aq) + 6 NO3 (aq) 3 CO32-(aq) + 2 Al3+(aq) ---> Al2(CO3)3(s) 7] Cesium cyanide + hydrochloric acid --> CsCN(aq) + HCl(aq) ---> HCN(aq) + CsCl(aq) Molecular equation Total ionic Cs+(aq) + CN-(aq) + H+(aq) + Cl-(aq) ---> HCN(aq) + Cs+(aq) + Cl-(aq) Net ionic CN-(aq) + H+(aq) ---> HCN(aq) <== a weak acid produced! 8] Barium hydroxide + cupric acetate --> Molecular equation Ba(OH)2(aq) + Cu(C2H3O2)2(aq) ---> Cu(OH)2(s) + Ba(C2H3O2)2(aq) Total ionic Ba2+(aq) + 2 OH-(aq) + Cu2+(aq) + 2 C2H3O2-(aq) --> Cu(OH)2(s) + Ba2+(aq) + 2C2H3O2-(aq) Net ionic 2 OH-(aq) + Cu2+(aq) ---> Cu(OH)2(s) 9] Chromium (III) chloride + sodium nitrate --> NR 10] Iron + nickel(III) iodide --> Molecular equation Fe(s) + NiI3(aq) ---> FeI3(aq) + Ni(s) Total ionic Fe(s) + Ni3+(aq) + 3 I-(aq) ---> Fe3+(aq) + 3 I-(aq) + Ni(s) Net ionic Fe(s) + Ni3+(aq) ---> Fe3+(aq) + Ni(s) OR Molecular equation 3 Fe(s) + 2 NiI3(aq) ---> 3 FeI2(aq) + 2 Ni(s) Total ionic 3 Fe(s) + 2 Ni3+(aq) + 6 I-(aq) ---> 3 Fe2+(aq) + 6 I-(aq) + 2 Ni(s) Net ionic 3 Fe(s) + 2 Ni3+(aq) ---> 3 Fe2+(aq) + 2 Ni(s) 11] Sodium hypoiodite + ammonium dichromate --> B NR 12] Acetic acid + Chromic hydroxide --> Molecular equation 3 HC2H3O2(aq) + Cr(OH)3(s) ---> 3 H2O(l) + Cr(C2H3O2)3(aq) Total ionic 3 HC2H3O2(aq) + Cr(OH)3(s) ---> 3 H2O(l) + Cr3+(aq) + 3 C2H3O2-(aq) Net ionic SAME AS TOTAL 13] Ferrous nitrate + sodium sulfide --> Molecular equation Total ionic Net ionic Fe(NO3)2(aq) + Na2S(aq) ---> FeS(s) 2 NaNO3(aq) Fe2+(aq) + 2 NO3-(aq) + 2 Na+(aq) + S2-(aq) --> FeS(s) + 2 NO3-(aq) + 2 Na+(aq) Fe2+(aq) + S2-(aq) ---> FeS(s) 14].Phosphoric acid + cobalt (II) bromide --> Molecular equation 2 H3PO4(aq) + 3 CoBr2 (aq) ---> 6 HBr(aq) + Co3(PO4)2(s) Total ionic 2 H3PO4(aq) + 3 Co2+(aq) + 6 Br- (aq) ---> 6 H+(aq) + 6 Br-(aq) + Co3(PO4)2(s) Net ionic 2 H3PO4(aq) + 3 Co2+(aq) ---> 6 H+(aq) + Co3(PO4)2(s) 15] Sodium sulfide + lead (II) nitrate--> Molecular equation Na2S(aq) + Pb(NO3)2(aq) --> PbS(s) + 2 NaNO3(aq) Total ionic 2 Na+(aq) + S2-(aq) + Pb2+(aq) + 2 NO3-(aq) --> PbS(s) + 2 Na+(aq) + 2 NO3-(aq) Net ionic S2-(aq) + Pb2+(aq) --> PbS(s) B