4 A piece of lead metal was added to an aqueous solution of

4: A piece of lead metal was added to an aqueous solution of copper(II) nitrate, and within a few minutes it was observed that the lead turned black and crumbled, and the blue solution characteristic of copper(II) ions faded. (NOTE: Lead forms a 2+ ion whern it reacts.) Write molecular, ionic and net ionic equation. Identify spectator ions.

Solution

molecular equation is

Pb(s) + Cu(NO₃)₂ (aq)..................> Pb(NO₃)₂ (aq) + Cu(s)

Ionic equation is

Pb(s) + Cu²⁺ (aq) + 2 NO₃^- (aq)..................> Pb²⁺ (aq) + 2 NO₃^- (aq) + Cu(s)

Net ionic equation is

Pb(s) + Cu²⁺ (aq).................> Pb²⁺ (aq) + Cu(s)

spectator ion is  NO₃^- (aq) that is nitrate ion.