Question

the following chemical equation shows the formation of silver chloride.
$3\ce{agno_{3}}(aq) + \ce{fecl_{3}}(aq) \
ightarrow 3\ce{agcl}(s)+\\____
which compound could represent the missing product?
\\(\bigcirc\\) \\(\ce{fe(no_{3})_{3}}(aq)\\)
\\(\bigcirc\\) \\(\ce{no_{3}fe}(aq)\\)
\\(\bigcirc\\) \\(\ce{feo_{2}}(aq)\\)
\\(\bigcirc\\) \\(\ce{fecl}(aq)\\)

1. choose the best answer.

what creates bubbles as evidence that a product was formed?
\\(\bigcirc\\) gas
\\(\bigcirc\\) liquid
\\(\bigcirc\\) precipitate
\\(\bigcirc\\) aqueous solution

Explanation:

First Sub - Question (Chemical Equation Balancing)

Step1: Identify Reaction Type

This is a double - displacement reaction. In a double - displacement reaction, the cations and anions of the reactants switch places. The general form is \(AB + CD
ightarrow AD+CB\). For the reaction \(3AgNO_{3}(aq)+FeCl_{3}(aq)
ightarrow3AgCl(s)+\underline{}\), the cation of \(AgNO_{3}\) is \(Ag^{+}\) and the anion is \(NO_{3}^{-}\); the cation of \(FeCl_{3}\) is \(Fe^{3 + }\) and the anion is \(Cl^{-}\).

Step2: Determine Products

After the switch, \(Ag^{+}\) combines with \(Cl^{-}\) to form \(AgCl\) (which is given as a product), and \(Fe^{3+}\) should combine with \(NO_{3}^{-}\). The formula for the compound formed from \(Fe^{3+}\) and \(NO_{3}^{-}\) is \(Fe(NO_{3})_{3}\) because the charge of \(Fe\) is \( + 3\) and the charge of \(NO_{3}^{-}\) is \(- 1\), so we need 3 \(NO_{3}^{-}\) ions to balance the charge of one \(Fe^{3+}\) ion.

Bubbles in a chemical reaction are typically formed when a gas is produced. A liquid does not produce bubbles as evidence of a new product (it's a state), a precipitate is a solid formed from a solution, and an aqueous solution is a solution in water and does not produce bubbles as a sign of a new product formation.

Answer:

A. \(Fe(NO_{3})_{3}(aq)\)

Second Sub - Question (Evidence of Product Formation)