what is a precipitation reaction?
Answers
Answer:
A precipitation reaction is a type of chemical reaction in which two soluble salts in aqueous solution combine and one of the products is an insoluble salt called a precipitate. ... Note that not all ionic compounds react to form precipitates.
Hope it helps!!
A precipitation reaction is a type of chemical reaction in which two soluble salts in aqueous solution combine and one of the products is an insoluble salt called a precipitate. The precipitate may stay in the solution as a suspension, fall out of solution on its own, or can be separated from the liquid using centrifugation, decantation, or filtration. The liquid that remains when a precipitate forms is called the supernate
Whether or not a precipitation reaction will occur when two solutions are mixed may be predicted by consulting a solubility table or the solubility rules. Alkali metal salts and those containing ammonium cations are soluble. Acetates, perchlorates, and nitrates are soluble. Chlorides, bromides, and iodides are soluble. Most other salts are insoluble, with exceptions (e.g., calcium, strontium, barium sulfides, sulfates, and hydroxides are soluble).
Whether or not a precipitation reaction will occur when two solutions are mixed may be predicted by consulting a solubility table or the solubility rules. Alkali metal salts and those containing ammonium cations are soluble. Acetates, perchlorates, and nitrates are soluble. Chlorides, bromides, and iodides are soluble. Most other salts are insoluble, with exceptions (e.g., calcium, strontium, barium sulfides, sulfates, and hydroxides are soluble).Note that not all ionic compounds react to form precipitates. Also, a precipitate may form under certain conditions, but not others. For example, changes in temperature and pH can affect whether or not a precipitation reaction will occur. Generally, increasing temperature of a solution increases the solubility of the ionic compounds, improving the likelihood of precipitate formation. The concentration of the reactants is also an important factor.