Science Struck
Science Struck: Double Displacement Reaction: Definition and Examples
Explains what is meant by a double displacement reaction and gives some examples.
Chem Tutor
Chem Tutor: Single Replacement Reactions
Information and examples on single and double replacement reactions, also called single displacement, single substitution, or activity replacement and double displacement, or metathesis. Practice problems with answers are available.
Science Struck
Science Struck: Examples of Single Replacement Reactions
Explains what a single replacement, or displacement, reaction is; describes the two types - cation and anion replacement reactions; and gives examples of chemical reaction equations for each.
Clackamas Community College
Clackamas Community College: Single Replacement Reactions
A very useful site that includes examples of replacement reactions as well as exercises for practicing balancing replacement reactions.