Precipitation Reactions
Writing Net Ionic Equations: The Process
1. Write a balanced molecular equation 2. Dissociate all strong electrolytes (soluble salts and strong acids) 3. Cross out anything that remains unchanged from the left side tot he right side of the equation. 4. The Net Ionic is written with the species that remain
Ionic Equation: part 1
All strong electrolytes (strong acids, strong bases, and soluble ionic salts) are dissociated into their ions.
Net Ionic Equation: Part 1
Formed by crossing out any ion that appears exactly the same on both sides (right and left) of the equation. (Spectator Ions)
Spectator Ions: Part 1
Ions that do not participate in the reaction; ions that appear the same on both sides of the equation
Ionic Equation: part 2
More accurately reflects the species that are found in the reaction mixture
Precipitation Reactions: definition
Reactions that result in the formation of an insoluble product
Spectator Ions: part 2
Spectator ions are deleted from the net ionic equation
Net Ionic Equation: Part 2
The components that remain are components of the reaction- components that change
Precipitation Reactions: a precipitate is...
an insoluble solid formed by a reaction in a solution
Metathesis Reactions: Metathesis
comes from a greek word that means "to transpose"
Metathesis Reactions: aka
double replacement reactions
Molecular Equations: The molecular equation
lists the reactants and products in their molecular form
Solution Chemistry: to understand reactivity
must understand what is changing during the course of a reaction
Metathesis Reactions: It appeared
the ions in the reactant compounds exchange, or transpose, ions
Solution Chemistry: must indicate
what species are present in a reaction mixture (i.e. solid, liquid, gas, aqueous solution)