Precipitation Reactions
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Transcript of Precipitation Reactions
TEKS C.10(H) UNDERSTAND AND DIFFERENTIATE AMONG ACID -BASE
REACTIONS, PRECIPITATION REACTIONS, AND OXIDATION-REDUCTION REACTIONS.
Precipitation Reactions
Precipitation Reactions
Precipitation reactions result in the formation of an insoluble product, or precipitate. What is a precipitate?
This means…? Soluble or Insoluble?Soluble- dissolves in solutionInsoluble- does not dissolve in solution
Solid, precipitate
Precipitation Reactions tend to be
Double-Displacement Reactions Reminder- Cations switch partners with the anions.
Example:
NaCl(aq)+AgNO3(aq)NaNO3(aq)+AgCl(s)
The Process
Should always be given the reactants but may or may not be given the products so…
Predict products Determine solubility Soluble (aq) Insoluble (s)
Sample EOC question
Which of the following chemical reactions will produce a precipitate?
A. 3KBr+AlPO4K3PO4+AlBr3
B. ZnCl2+Mg2SO4ZnSO4+MgCl2
C. Na2CO3+CaCl2CaCO3+2NaCl
D. NH4OH+KClKOH+NH4Cl
Predicting Products
Write a balanced equation and Identify the precipitate that forms when the following solutions are mixed: KOH and Cu(NO3)2
KOH(aq)+Cu(NO3)2Cu(OH)2+ KNO3
Cu(OH)2(s) is the precipitate formed