Question

Enter the net ionic equation for the reaction of aqueous sodium chloride with aqueous silver nitrate.

Answer 1

The net ionic equation: Ag⁺ (aq) + Cl⁻(aq) -> AgCl (s)

Further explanation

The electrolyte in the solution produces ions.

The equation of a chemical reaction can be expressed in the equation of the ions

For strong electrolytes (the ionization rate = 1) is written in the form of separate ions, while the weak electrolyte (degree of ionization <1) is still written as an un-ionized molecule

In the ion equation, there is an ion spectator that is the ion which does not react because it is present before and after the reaction

When these ions are removed, the ionic equation is called the net ionic equation

For gases and solids including water (H₂O) can be written as an ionized molecule

So only the dissolved compound is ionized ((expressed in symbol aq)

Formation of precipitating compounds that cause reactions can occur from double-replacement reactions

Solubility Rules:

• 1. soluble compound

All compounds of Li⁺, Na⁺, K⁺, Rb⁺, Cs⁺, and NH₄⁺

All compounds of NO₃⁻ and C₂H₃O₂⁻

Compounds of Cl⁻, Br⁻, I⁻ except Ag⁺, Hg₂²⁺, Pb²⁺

Compounds of SO₄²⁻ except Hg₂²⁺, Pb²⁺, Sr²⁺, Ba²⁺

• 2. insoluble compounds

Compounds of CO₃²⁻ and PO₄³⁻ except for Compounds of Li +, Na +, K +, Rb +, Cs +, and NH₄ +

Compounds of OH− except Compounds of Li +, Na +, K +, Rb +, Cs +, NH₄⁺, Sr²⁺, and Ba²⁺

The reaction between AgNO₃ (aq) and NaCl (aq)

AgNO₃ (aq) + NaCl (aq) ⇒AgCl (s) + NaNO₃ (aq)

AgCl is an insoluble compound, so reactions can take place and double-replacement reactions occur

Complete ion reaction:

$\rm Ag ^ ++ NO_3 ^ - + Na ^ ++ Cl ^ - \Rightarrow AgCl (s) + Na ^ ++ NO_3 ^ - \\\\ spectator \: ions: Na ^ + \: and \ : NO_3 ^ - \\\\ net \: ionic \: equation: Ag ^ ++ Cl ^ - \Rightarrow AgCl (s)$

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Answer 2

An ionic equation refers to a chemical equation where the electrolytes in aqueous solution are demonstrated as dissociated ions. Generally, this is a salt dissolved in water, where the ionic species are succeeded by (aq) in the equation, to suggest that they are in aqueous solution.  

Net ionic equation refers to a chemical equation for a reaction that lists only those species that takes part in the reaction. It is an equation, which demonstrates only the reactants taking part in the formation of a precipitate.  

In the given case, balanced chemical equations is,  

AgNO₃ (aq) + NaCl (aq) = AgCl (s) + NaNO₃ (aq)

Complete ionic equation:  

Ag⁺ (aq) +NO₃⁻ (aq) + Na⁺ (aq) + Cl⁻ (aq) = AgCl (s) + Na⁺ (aq) + NO₃⁻ (aq)

Net Ionic equation:  

Ag⁺ (aq) + Cl⁻ (aq) = AgCl (s) (Silver chloride settles as white precipitate)