L10: Chemical Reactions

In Lesson 9, you looked at reactions that occur in aqueous solutions. In most cases, when a reaction occurred, a precipitate was formed as one of the products. A precipitation reaction is a double displacement reaction where one of the products formed is an insoluble solid. Double displacement reactions are reactions where the cations and anions of the reactants are switched. In Lesson 10 you will look at other types of reactions: What happens when a metal burns in air? Why does an iron nail rust? If you drop a chunk of calcium metal into water, why does it "fizz?" By understanding why some metals are more reactive than others, you will be able to predict if a reaction will occur when two substances are combined and what products will form.

Objectives for Lesson 10

After completing this lesson, you will be able to:

  • Predict the compound that forms from a reaction between a metal and a nonmetal 
  • Write equations that show electron transfer in a chemical reaction 
  • Classify reactions as precipitation, synthesis, combination, decomposition, combustion, acid-base, neutralization, single displacement, double displacement, and/or oxidation reduction 
  • Write a sample reaction equation for each type of reaction