The reaction between FeCl3 and CoCl2 is a no reaction. The reaction between NaI and Pb(NO3)2 is a double displacement reaction.
Here are the answers for the first reaction:
Formulas of the reactants:
FeCl3 (aq, yellow solution) + CoCl2 (aq, pink solution)
Molecular equation:
FeCl3 (aq) + CoCl2 (aq) → FeCl2 (aq) + CoCl3 (aq)
Complete ionic equation:
Fe3+ (aq) + 3Cl-(aq) + Co2+ (aq) + 2Cl- (aq) → Fe2+ (aq) + 2Cl- (aq) + Co3+ (aq) + 3Cl- (aq)
Net ionic equation:
Fe3+ (aq) + Co2+ (aq) → Fe2+ (aq) + Co3+ (aq)
Formulas of the possible products:
FeCl2 (aq) + CoCl3 (aq)
Observation (visual):
Peach solution
Spectator ions:
Cl- (aq)
Reacting ions:
Fe3+ (aq) and Co2+ (aq)
Did the reaction occur?
No
Classification of reaction:
No reaction
Here are the answers for the second reaction:
Formulas of the reactants:
NaI (aq, clear solution) + Pb(NO3)2 (aq, light yellow solution)
Molecular equation:
NaI (aq) + Pb(NO3)2 (aq) → PbI2 (s) + NaNO3 (aq)
Spectator ions:
Na+ (aq) and NO3- (aq)
Reacting ions:
Pb2+ (aq) and I- (aq)
Did the reaction occur?
Yes
Classification of reaction:
Double displacement .