4.3

Single displacement and where it occurs

Occur between salt

A more reactive element replaces a less reactive  element in a compound

Identify reaction

Double displacement and where it occurs

Element replaces( displaces) another element from a compound

• occur in  aqueous solutions and the ions are exchanges between reacting compounds

Recreate double displacement reaction with AB+CD

Precipitate

Insoluble product that forms a solid in reaction

Precipitation reaction - double displacement

tye of double displacement reaction that forms a preipitate when two solutions are combined

What are the two precipitation reaction products

Ionic copound form precipitates

Ionic compound dissolve in water -→ Ions are avaliable to form new compound with other ions

• If new copound is insoluble , solid precipitate forms

Solubility rules help identify preciptates

Solubility rules  for ionic compounds tell you  cerain ions will form precipitates with other ions or stay dissolved in solution