Chapter 9.2: Types of Chemical Reactions – p311-315 – page 1
Vocabulary
 Synthesis (313) - A synthesis is a type of chemi...
Chapter 9.2: Types of Chemical Reactions – p311-315 – page 2
Replacement Reactions
 Single-replacement
o In a single-repl...
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Chapter 9.2: Types of Chemical Reactions

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8th Grade Integrated Science Chapter 9 Lesson 2 on Types of Chemical Reactions. This chapter explains five different types of reactions: synthesis, decomposition, single replacement, double replacement, and combustion.

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Chapter 9.2: Types of Chemical Reactions

  1. 1. Chapter 9.2: Types of Chemical Reactions – p311-315 – page 1 Vocabulary  Synthesis (313) - A synthesis is a type of chemical reaction in which two or more substances combine and form one compound.  Decomposition (313) - In a decomposition reaction, one compound breaks down and forms two or more substances.  Single Replacement (314) - In a single-replacement reaction, one element replaces another element in a compound.  Double Replacement (314) - In a double-replacement reaction, the negative ions in two compounds switch places, forming two new compounds.  Combustion (314) - Combustion is a chemical reaction in which a substance combines with oxygen and releases energy. Types of Chemical Reactions  There are many different types of reactions. Most fit into 4 major categories. o _____________________ o _____________________ o _____________________ o _____________________ Synthesis  A synthesis is a type of chemical reaction in which two or more substances combine and form one_______________________.  Example:   Decomposition Reactions  In a decomposition reaction, one compound breaks down and forms two or more________________________.  So one reactant will form two or more______________________.  The ___________________of synthesis. o Example:  
  2. 2. Chapter 9.2: Types of Chemical Reactions – p311-315 – page 2 Replacement Reactions  Single-replacement o In a single-replacement reaction, one element replaces another element in a_____________________. o In this reaction one element and a compound react and form a different element and a different_______________. o Example:   Double-Replacement o In a double-replacement reaction, the negative ____________ in two compounds switch places, forming two new compounds. o In this reaction you start with 2 compounds and end with two _______________compounds. o Example:   Combustion Reactions  Combustion is a chemical reaction in which a substance combines with ______________and releases energy.  This energy usually is released as thermal energy and _______________energy.  __________________is a common combustion reaction.

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