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Single-Replacement Reactions

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Types of Reactions

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Single-Replacement Reactions


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You get to know the major kinds of chemical reactions including polymerization, hydrolysis, combustion, replacements, and redox. Experiment with some electrochemical reactions as well.

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Now You Know

After completing this tutorial, you will be able to complete the following:

  • Define single-replacement reactions.

Everything You'll Have Covered

What is a single-replacement reaction?

~ A single-replacement reaction occurs when one element replaces another element in a compound. In single-replacement reactions, only one element, called a reactant, replaces another element in a compound, which forms the other reactant. One reactant in a single- replacement reaction must be an element, while the other must be a compound. For example, when an aluminum plate is dipped into a copper chloride solution, the copper ions in the solution are replaced by aluminum atoms.

What are the different types of single-replacement reactions?

~ One type of single-replacement reaction occurs when a metal atom, the reactant, replaces another metal atom in a solution. A second type of single-replacement reaction occurs when a nonmetal atom reactant replaces another nonmetal atom in a solution. In the third type of single-replacement reaction, a metal atom replaces one of the hydrogen atoms in a water molecule. The fourth type of single-replacement reaction occurs when an active metal atom replaces a hydrogen atom in a diluted sulfuric acid hydrochloric acid solution.

In a single-replacement reaction, a reaction only takes place if a more reactive metal replaces a less reactive one. In a single-replacement reaction, would manganese replace tin? Why or why not?

~ In a single-replacement reaction, manganese would replace tin because manganese is more reactive than tin.

Like metals, nonmetals have different reaction levels. In a single replacement reaction, would iodine replace bromine?

~ No, iodine would not replace bromine in a single-replacement reaction because iodine is less reactive than bromine.

Tutorial Details

Approximate Time 2 Minutes
Pre-requisite Concepts Students should have able to define chemical reaction, chemistry, and copper chloride.
Course Chemistry
Type of Tutorial Animation
Key Vocabulary chemical reaction, chemistry, copper chloride