Chemistry, 21.10.2020 16:01 BluSeaa

When aqueous solutions of AgNO3 and KI are mixed, AgI precipitates. The balanced net ionic equation is . When aqueous solutions of AgNO3 and KI are mixed, AgI precipitates. The balanced net ionic equation is . AgNO3 (aq) + KI (aq) → AgI (s) + KNO3 (aq) Ag+ (aq) + I- (aq) → AgI (s) AgNO3 (aq) + KI (aq) → AgI (aq) + KNO3 (s) Ag+ (aq) + NO3 - (aq) → AgNO3 (aq) Ag+ (aq) + NO3 - (aq) → AgNO3 (s)

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The net ionic equation of aqueous solutions of AgNO_3 and to form AgI precipitates is: B. $Ag^{+}_{(aq)} + I^{-}_{(aq)}$ -----> $AgI_{(s)}$

A balanced chemical equation can be defined as a chemical equation wherein the number of atoms on the reactant (left) side is equal to the number of atoms on the product (right) side.

This ultimately implies that, both the charge on each atom and sum of the masses of the chemical compounds or elements in a chemical equation are properly balanced.

An ion can be defined as an atom or molecules (group of atoms) that has lost or gained one or more of its valence electrons, thereby, making it have a net positive or negative electrical charge.

First of all, we would write the dissociation equation for aqueous solutions of AgNO_3 and :

For AgNO_3 :

$AgNO_3_{(aq)}$ -----> $Ag^{+}_{(aq)} + NO_{3}^{-}_{(aq)}$

For :

$KI_{(aq)}$ -----> $K^{+}_{(aq)} + I^{-}_{(aq)}$

Next, we would write a chemical equation for the reaction of aqueous solutions of AgNO_3 and :

$AgNO_3_{(aq)} + KI_{(aq)}$ -----> $Ag^{+}_{(aq)} + NO_{3}^{-}_{(aq)}$ $+ \;K^{+}_{(aq)} + I^{-}_{(aq)}$ -----> $AgI_{(s)} + K^{+}_{(aq)} + NO_{3}^{-}_{(aq)}$

Note: Spectator ions refers to the ions that exist as a reactant and a product in a chemical equation because they are unchanged by the chemical reaction.

In this chemical reaction, the spectator ions are:

$NO_{3}^{-}$

Finally, in order to obtain the net ionic equation, we would cancel out the two (2) spectator ions:

$Ag^{+}_{(aq)} + I^{-}_{(aq)}$ -----> $AgI_{(s)}$

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