General, Organic, and Biological Chemistry Fourth Edition Karen Timberlake 6.2 Types of Reactions Chapter 6 Chemical Reactions and Quantities © 2013 Pearson Education, Inc. Lectures

© 2013 Pearson Education, Inc. Chapter 6, Section 2 2 Types of Reactions Chemical reactions can be classified as  combination reactions,  decomposition reactions,  single replacement reactions,  double replacement reactions, or  combustion reactions.

© 2013 Pearson Education, Inc. Chapter 6, Section 2 3 Combination Reaction In a combination reaction, two or more elements (or simple compounds) combine to form one product.

© 2013 Pearson Education, Inc. Chapter 6, Section 2 4 Formation of MgO

© 2013 Pearson Education, Inc. Chapter 6, Section 2 5 Decomposition Reaction In a decomposition reaction, one substance splits into two or more simpler substances.

© 2013 Pearson Education, Inc. Chapter 6, Section 2 6 Decomposition of HgO

© 2013 Pearson Education, Inc. Chapter 6, Section 2 7 Single Replacement Reaction In a single replacement reaction, one element takes the place of a different element in a reacting compound.

© 2013 Pearson Education, Inc. Chapter 6, Section 2 8 Zn and HCl Combine in a Single Replacement Reaction

© 2013 Pearson Education, Inc. Chapter 6, Section 2 9 Double Replacement Reaction In a double replacement reaction, the two positive ions in the reacting compounds exchange places.

© 2013 Pearson Education, Inc. Chapter 6, Section 2 10 Example of Double Replacement

© 2013 Pearson Education, Inc. Chapter 6, Section 2 11 Combustion Reaction In a combustion reaction, a carbon-containing compound that is the fuel burns in oxygen from the air to produce carbon dioxide (CO 2 ), water (H 2 O), and energy in the form of heat or a flame.

© 2013 Pearson Education, Inc. Chapter 6, Section 2 12 Combustion Reaction

© 2013 Pearson Education, Inc. Chapter 6, Section 2 13 Summary Reaction Types

© 2013 Pearson Education, Inc. Chapter 6, Section 2 14 Learning Check Classify the following reactions as a combination or decomposition reaction.

© 2013 Pearson Education, Inc. Chapter 6, Section 2 15 Solution Classify the following reactions as a combination or decomposition reaction. 1. H 2 (g) + Br 2 (g) 2HBr(l) combination 2. Al 2 (CO 3 ) 3 (s) Al 2 O 3 (s) + 3CO 2 (g) decomposition 3. 4Al(s) + 3C(s) Al 4 C 3 (s) combination

© 2013 Pearson Education, Inc. Chapter 6, Section 2 16 Learning Check Classify each of the following reactions as a single replacement or a double replacement reaction.

© 2013 Pearson Education, Inc. Chapter 6, Section 2 17 Solution Classify each of the following reactions as a single replacement or a double replacement reaction.

© 2013 Pearson Education, Inc. Chapter 6, Section 2 18 Learning Check Identify each of the following reactions as a combination, a decomposition, a single replacement, a double replacement, or a combustion reaction.

© 2013 Pearson Education, Inc. Chapter 6, Section 2 19 Solution Identify each of the following reactions as a combination, a decomposition, a single replacement, a double replacement, or a combustion reaction.