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)