Before you begin, you need to know:
1. Nomenclature
of molecules and ions.
2. How to identify strong,
weak and non electrolytes
3. Solubility rules
To write the net ionic equation:
a) Write the molecular equation.
b) Write the ionic equation.
- Identify strong electrolytes and write them in ionic
form (as ions) unless it is an insoluble salt
E.g. NaCl ---> Na+(aq) + Cl - (aq)
- Identify weak and non electrolytes and write them in molecular form.
E.g. H2CO3(aq) Weak
electrolyte
CH3OH(aq) Non electrolyte
- Insoluble salts are written in molecular form.
E.g. AgCl(s).
c) Eliminate the spectator ions to
get the net ionic equation. The net ionic
equation describes the chemistry that is occurring.
Examples
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