Chapter F, Problem H.9E

(a)

Interpretation Introduction

Interpretation:

Balanced chemical equation has to be written for the reaction given using the shortcut.

    ${\text{Pb(NO}}_{\text{3}}{\text{)}}_{\text{2}}(aq)+{\text{Na}}_{\text{3}}{\text{PO}}_{\text{4}}(aq)\to {\text{Pb}}_{\text{3}}{{\text{(PO}}_{\text{4}}\text{)}}_{\text{2}}(s)+{\text{NaNO}}_{\text{3}}(aq)$

Concept Introduction:

Chemical equation is a short form representation of a chemical reaction with all the required conditions necessary for the reaction to take place.  As the atoms are neither created nor destroyed in a chemical reaction, the number of atoms of same element has to be equal on both sides of the equation.  This is known as balanced chemical equation.  Coefficients can be changed but not the subscript.

(b)

Interpretation Introduction

Interpretation:

Balanced chemical equation has to be written for the reaction given using the shortcut.

    ${\text{Ag}}_{\text{2}}{\text{CO}}_{\text{3}}(s)+\text{NaBr}(aq)\to \text{AgBr}(s)+{\text{Na}}_{\text{2}}{\text{CO}}_{\text{3}}(aq)$

Concept Introduction:

Refer part (a).