6.2 Types of Chemical Reactions

Single and Double DisplacementNeutralization

4. Single DisplacementElement + Ionic Compound New element + New

ionic Compound

In general, A + BC B + AC if the A is a metal it replaces a metal

Notice: A replaces B A + BC C + BA if the A is a non-metal it

replaces a non-metal Notice: A replaces C

ExamplePredict the products made when:A) sodium chloride reacts with Calcium

B) Aluminum oxide reacts with phosphorus

5. Double DisplacementPositive or negative ions in two dissolved

ionic compounds (aqueous) switch places

Compound + compound new compound + new compound

In general,AB + CD AD + CBNotice how A and C (both metals) traded places

ExamplePredict the products made when A) magnesium hydroxide reacts with silver

nitrate

B) Potassium iodide reacts with calcium chloride

6. NeutralizationSpecial kind of double displacement reactionOnly happens between an acid (has H as the

metal) and base (has OH as the non-metal)Always makes a SALT and WATER

In general,HB + XOH XB + H2O (also written as HOH)

ExamplePredict the products made when:A) hydrochloric acid reacts with lithium

hydroxide

B) Sulfurous acid reacts with Sodium hydroxide

HomeworkWorksheetP. 233 Practice problems #1-2P. 234 Practice problems #1-3P. 235 Practice problems #1-2