Chapter 4.6, Problem 4.12PP

(a)

Interpretation Introduction

Interpretation:

The net ionic equation for the reaction of ${\text{BaCl}}_{\text{2(aq)}}$ with ${\text{ZnSO}}_{\text{4(aq)}}$ has to be written.

Concept Introduction:

Net ionic Equation:

The net ionic equation shows only those chemical species that actually undergo chemical change.  The ions that do not change during the chemical reaction are called spectator ions.  These spectator ions are not shown in net ionic equation.

(b)

Interpretation Introduction

Interpretation:

The net ionic equation for the reaction of ${\text{AgNO}}_{\text{3(aq)}}$ with ${\text{Na}}_{\text{2}}{\text{SO}}_{\text{4(aq)}}$ has to be written.

Concept Introduction:

Refer part (a).