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Precipitation Reactions. Teks C.10(H) UNDERSTAND AND DIFFERENTIATE AMONG ACID-BASE REACTIONS, PRECIPITATION REACTIONS, AND OXIDATION-REDUCTION REACTIONS. Precipitation Reactions. Precipitation reactions result in the formation of an insoluble product, or precipitate. What is a precipitate?
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Precipitation Reactions Teks C.10(H) UNDERSTAND AND DIFFERENTIATE AMONG ACID-BASE REACTIONS, PRECIPITATION REACTIONS, AND OXIDATION-REDUCTION 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 solution • Insoluble- 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