Question

Balance the reaction which forms ions. Choose "blank" if no coefficient other than 1 is needed. Pb(N03)2(aq) --> ___ Pb+2 + __ NO3 -

Answer 1

Pb(NO3)2 -> Pb+2 + 2 NO3-

Answer 2

Answer : The balanced chemical reaction will be,

$Pb(NO_3)_2(aq)\rightarrow Pb^{2+}(aq)+2NO_3^-(aq)$

Explanation :

Balanced chemical reaction : It is defined as the chemical reaction in which the number of individual atoms of an element in reactant side always be equal to the number of individual atoms of an element in product side.

The given balanced reaction will be,

$Pb(NO_3)_2(aq)\rightarrow Pb^{2+}(aq)+2NO_3^-(aq)$

By the stoichiometry we can say that, 1 mole of $Pb(NO_3)_2$ dissociates into 1 mole of $Pb^{2+}$ ion and 2 moles of $NO_3^-$ ions.

Hence, the balanced chemical reaction will be,

$Pb(NO_3)_2(aq)\rightarrow Pb^{2+}(aq)+2NO_3^-(aq)$