Respuesta :
Answer:- B) Full ionic equation
Explanations:- A molecular equation does not have ions. It is the non charge form of the elements of compounds. When we write the full or total ionic equation for the molecular equation then ions are written for the aqueous species. The ions present on both sides(reactant and product sides) in a full ionic equation are known as spectator ions or common ions. These ions are canceled to get the net ionic equation. For example, reaction of aqueous solution of silver nitrate with aqueous solution of barium chloride to form aqueous solution of barium nitrate and a precipitate of silver chloride.
Balanced molecular equation:-
[tex]BaCl_2(aq)+2AgNO_3(aq)\rightarrow Ba(NO_3)_2(aq)+2AgCl(s)[/tex]
Full ionic equation:-
[tex]Ba^+^2(aq)+2Cl^-(aq)+2Ag^+(aq)+2NO_3^-(aq)\rightarrow Ba^+^2(aq)+2NO_3^-(aq)+2AgCl(s)[/tex]
If we look at the above full ionic equation then barium ion and nitrate ions are the spectator ions are they are present on both sides.
So, while writing the net ionic equation, these spectator ions are canceled.
Net ionic equation:-
[tex]2Cl^-(aq)+2Ag^+(aq)\rightarrow2AgCl(s)[/tex]
So, it is also clear from the above example that it's the full ionic equation that include spectator ions.
B. Full ionic equation will include spectator ions
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 spectator ion 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)
For example Reaction between :
K₃PO₄(aq) + FeCl₃(aq)
Reactions that occur:
K₃PO₄(aq) + FeCl₃(aq) ⇒ 3KCl(aq) + FePO₄(s)
this reaction is called Molecular equation
FePO₄(s) solid form that does not decompose in the form of ions
So the ionic equation becomes:
- 3K+(aq) + PO₄³⁻(aq) + Fe³⁺(aq) + 3Cl⁻(aq) ⇒ 3K⁺(aq) + 3Cl⁻(aq) + FePO₄(s)
this reaction is called Full ionic equation
There is spectator ions that is 3K⁺(aq) and 3Cl⁻(aq) , so that if it is removed a net ionic equation will be formed:
- PO₄³⁻(aq) + Fe³⁺(aq) ⇒ FePO₄(s)
this reaction is called Net ionic equation
Learn more
the net ionic equation
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Keywords: the net ionic equation, spectator ions, molecular equation,full ionic equation, net ionic equation
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