Question

Complete each of the following as a net ionic equation, indicating whether a precipitate forms. If no reaction occurs, so state.

Ca2++2Cl−+Pb2++2NO−3→

Al3++3NO−3+K++OH−→

Fe3++3NO−3+Na++OH−→

Answer 1

1) Given, the ionic equation,

Ca²⁺(aq) + 2Cl^-(aq) + Pb²⁺(aq) + 2NO₃^-(aq)

Using the solubility chart, completing the ionic equation,

Ca²⁺(aq) + 2Cl^-(aq) + Pb²⁺(aq) + 2NO₃^-(aq) PbCl₂(s) + Ca²⁺(aq) + 2NO₃^-(aq)

Cancelling the spectator ions.

Pb²⁺(aq) + 2Cl^-(aq) PbCl₂(s) ------------Net ionic equation

2) Given, the ionic equation,

Al³⁺(aq) + 3NO₃^-(aq) + K⁺(aq) + OH^-(aq)

Using the solubility chart, completing the ionic equation and balancing the ions,

Al³⁺(aq) + 3NO₃^-(aq) + K⁺(aq) + 3OH^-(aq) Al(OH)₃(s) + K⁺(aq) + 3NO₃^-(aq)

Now, cancelling the spectator ions,

Al³⁺(aq) + 3OH^-(aq) Al(OH)₃(s) ---------Net ionic equation

3) Given, the ionic equation,

Fe³⁺(aq) + 3NO₃^-(aq) + Na⁺(aq) + OH^-(aq)

Using the solubility chart, completing the ionic equation and balancing the ions,

Fe³⁺(aq) + 3NO₃^-(aq) + Na⁺(aq) + 3OH^-(aq) Fe(OH)₃(s) + Na⁺(aq) + 3NO₃^-(aq)

Now, cancelling the spectator ions,

Fe³⁺(aq) + 3OH^-(aq) Fe(OH)₃(s) ---------Net ionic equation