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:

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.