Split up the ionic compounds into their respective ions Combine a cation with an anion from the ions in solution There are 2 possible combinations These are the possible products Check the solubility rules to determine which of the possible products is not soluble This is the precipita ID: 830206
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Slide1
Rules for Writing Net Ionic Equations
Slide2Split up the ionic compounds into their respective ions.
Combine a cation with an anion from the ions in solution. There are 2 possible combinations. These are the possible products.
Check the solubility rules to determine which of the possible products is not soluble. This is the precipitate. There may be 1, 2, or no precipitates.
Write the reaction by putting the precipitate on the product side first and then the ions that make it up on the reactant side.
Slide3Example
Write the net ionic equation for the reaction that occurs when aqueous solutions of potassium carbonate and nickel (II) nitrate are mixed.
Ions in solution: K
+1
, CO
3
-2
, Ni
+2,
, NO
3
-1
Possible products: KNO
3
, NiCO
3
Precipitate: Solubility rules indicate NiCO
3
is insoluble.
Write ppt on product side
NiCO
3(s)
Complete the reaction by writing the ions that make up the precipitate on the reactant side Ni
+2
(aq)
+
CO
3
-2
(aq)
-
NiCO
3(s)
Slide4Precipation Problems
11, 12, 14-25