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Section Name: Date: For the Reactions that Occurred: You should know that group

ID: 946256 • Letter: S

Question

Section Name: Date: For the Reactions that Occurred: You should know that group I metal cations Therefore, you can now predict a reaction product for each mixture. 1) In the space below, if you have a solid that forms, you need to write the and nitrates will not precipitate, regardless of counterion. a) total ionic reaction and b) the net ionic reaction Make sure each reaction is properly balanced (atoms and charge). Make sure each solid has balanced cation and anion charge. Label the solids with (s). Example: R n (AgNO, + NaCl): Total. Ag'aq) + No, (aq) + Nadaq) + Cl (aqAgCl(s) + Na.(aq) + No, (a) Net: Ag.(aq) + cr(aq) AgCl(s) 2) If there is NO reaction for that well, simply write NR. Rxn 1A (CuSOs+ KI) Rxn IB (FeCl,+K) Rxn ID (Pb(NO,h +KI): Rxn IF (NaOH+ KI): Rxn 1G (Na CO,+ KI): Rxn IH (AgNO,+KI) Rxn 2A (CuSO+ AgNO,) Montclair State University Chemistry 120 Page 44

Explanation / Answer

1A. Reaction: CuSO4 (aq) + 2KI(aq) = CuI2 (s) + K2SO4(aq)

Total ionic equation: Cu2+(aq) + SO42- (aq) + 2K+(aq) + 2I- (aq) = CuI2 (s) + 2K+(aq) + SO42- (aq)

net ionic equation: Cu2+(aq) + 2I- (aq) = CuI2 (s)

1B. Reaction: 2FeCl3 + 6KI = 2FeI2 + I2 (s)+ 6KCl

Total ionic equation: 2Fe3+(aq) + 6Cl- (aq) + 6K+(aq) + 6I- (aq) = 2Fe2+(aq)+ 4I- (aq) + I2 (s)+ 6K+(aq) + 6Cl- (aq)

net ionic equation: 2Fe3+(aq) + 2I-(aq) = 2Fe2+(aq)+ I2 (s)

1C. No net reaction is possible as Ca(NO3)3 , KI, CaI2 and KNO3 all are soluble in water.

1D. Pb(NO3)2 + 2KI = PbI2(s) + 2KNO3

Total ionic equation: Pb2+(aq) + 2NO3- (aq) + 2K+(aq) + 2I- (aq) = PbI2 (s) + 2K+(aq) + 2NO3- (aq)

net ionic equation: Pb2+(aq) + 2I- (aq) = PbI2 (s)

1E. No reaction.

1F. No reaction.

1G. No reaction.

1H. AgNO3 + KI = AgI(s) + KNO3

Total ionic equation: Ag+(aq) + NO3- (aq) + K+(aq) + I- (aq) = AgI (s) + K+(aq) + NO3- (aq)

net ionic equation: Ag+(aq) + I- (aq) = AgI (s)

2A. CuSO4 + 2AgNO3 = Ag2SO4(s) + Cu(NO3)2

Total ionic equation: Cu2+(aq) + SO42-(aq)+ 2Ag+(aq) + 2NO3- (aq) = Ag2SO4 (s) + Cu2+(aq) + 2NO3- (aq)

net ionic equation: 2Ag+(aq) + SO42- (aq) = Ag2SO4 (s)

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