Metathesis Reactions (aka Double Replacement Reactions)

Metathesis Reactions (Double Replacement)

Objectives

  • Predict the products of and write balanced reactions for both precipitation and neutralization metathesis reactions.

The Bad Prom Date Analogy

  • Represented as: AX + BY \rightarrow AY + BX

  • You will be responsible for predicting the products of two types of metathesis reactions: precipitation and neutralization.

Precipitation Reactions

  • Produce a solid product known as a precipitate (ppt).

Neutralization Reactions

  • Occur when acids are reacted with bases.
  • The products are usually water and a salt, although some neutralizations produce a gas and a salt.

Examples of Metathesis Reactions

  • Silver nitrate solution reacts with aqueous potassium chloride.
  • Solutions of barium chloride and potassium sulfate are mixed.
  • A solution of iron (III) sulfate is mixed with a solution of lithium hydroxide.
  • Potassium nitrate (aq) is reacted with sodium acetate (aq).
  • Hydrochloric acid reacts with a solution of sodium hydroxide.
  • Solid magnesium hydroxide pellets are mixed into a solution of nitric acid.
  • Acetic acid reacts with a solution of sodium hydroxide.
  • Solid magnesium oxide is mixed into a solution of nitrous acid.
  • Sulfuric acid is reacted with aqueous lithium hydroxide.
  • Solid calcium oxide powder is combined with a solution of hydrochloric acid.
  • Solutions of hydrofluoric acid and barium hydroxide are combined.
  • A sample of solid copper (II) hydroxide is added to a solution of hypochlorous acid.
  • Solid sodium sulfide is reacted with a warmed solution of hydrochloric acid.
  • Solid magnesium sulfide is mixed into aqueous phosphoric acid.
  • A solution of sodium carbonate is neutralized with a solution of hydrochloric acid.
  • Calcium carbonate chunks are covered with a solution of dilute sulfuric acid.
  • Baking soda (sodium bicarbonate) is saturated with a vinegar solution (acetic acid) to make a model volcano.