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An iconic equation includes writing the electrolytes using ions and not as complete compounds. Therefore in the net ionic equation, the ions that are spectator are cancelled from both the ends. Another definition of the net ionic equation includes indicating only the participating species of a chemical reaction in the chemical equation. Therefore these equations are basically used in case of redox reactions and include- reaction of the stronger electrolytes in water and the double displacement reaction. The fundamentals of the net ionic equation include- three main steps or stages. The steps or phases of the net ionic equation include- balancing of the chemical equation as the first phase, then comes writing the ionic equation. For the purpose of writing the ionic equation, the strong electrolytes needs to be split into ions in the form of aqueous solution. Then the indication of the charge and the coefficient of each ion is done. After writing about each ion, it becomes necessary to indicate the phase of (aq). Further in the net ionic equation, there can be no changes to the phases of (s), (l) and (g). In the (aq) phase, both the products and the reactants, cancel out each other because they are spectator ions. Therefore these spectators’ ions are not allowed to take part in the net ionic reaction.
An example of the NET IONIC EQUATION includes-
Na+ and Br- are the spectator ions and are therefore not eligible for participation in the reaction.
The above example is the net ionic equation of 1M of HBr and 1M of NaOH.
1st phase of balancing the chemical reaction:
In a net ionic equation, the chemical species that are involved in a chemical reaction are shown and in a complete ionic equation, the spectator ions are also shown. A spectator ion is one that does not take part in the chemical reaction and is only found in the solution before the reaction and after the reaction.
The balanced chemical reaction:
2AgNO3(aq) + K2SO4(aq) Ag2SO4(s)+ 2KNO3(aq)
2nd phase of ionic equation
The ionic equation includes:
2Ag+(aq)+ 2NO-3(aq)+ 2K+(aq) SO2-4(aq) Ag2SO4(s)+ 2K+(aq)+ 2NO3-(aq)
The ionic equation:
2Ag+(aq) + 2NO3-(aq)+ 2K+(aq)+ SO42-(aq) Ag2SO4(s) + 2K+(aq) + 2NO3-(aq)
The net ionic equation:
2Ag+(aq) + SO42-(aq) Ag2 SO4(s)
3rd phase of net ionic equation
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