posted by Keri .
If a precipitation reaction occurs, when a solution of one substance is added to a solution of the other, enter the formula and state of the spectator ions. Separate by comma. If there is no reaction, enter the formula and state of all ions in solution.
CoI2(aq) + Pb(NO3)2(aq) →
PbI2 is a ppt. The others are spectator ions.