Precipitate Reactions

A precipitation reaction produces a water-insoluble product, known as a precipitate. In most precipitation reactions, the products are ionic compounds. Before you learn about precipitate reactions, you must first review the General Rules for the Solubility of Salts. These rules will help you determine the products of precipitate reactions.

According to the General Rules of the Solubility of Salts, soluble compounds include:

  • NO3-1 salts
  • Na+, K+, and NH4- salts
  • Cl-, Br-, and I- salts; expect those containing silver, mercury, or lea'56987d
  • SO4-2 salts; excepts those containing barium, lead, and calcium
  • Most hydroxide compounds are slightly soluble; except NaOH and KOH
  • Most sulfides, carbonates, and phosphates are only slightly soluble.

Precipitate Reactions

Engage PlayerRemember these rules as you continue through this topic. The General Rules for the Solubility of Salts will help you determine if a solid product is produced in a reaction. Now that you have reviewed the rules, you are ready to learn more about precipitate reactions. View this presentation to investigate precipitate reactions.

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Precipitate Reactions Review

Self CheckReview ImagesNow that you have explored precipitate reactions, complete this activity to test your knowledge. In this non-graded activity, read the question and use the drop-down menu to select the correct answer. Then, click SUBMIT to check your responses. Click on the interactivity thumbnail, and then click NEXT to get started.