types of chemical reactions

Front

What is a Combination Reaction?

Back

A reaction where two or more substances combine to form a single product. Example: A + B → AB.

Front

What is a Decomposition Reaction?

Back

A reaction where a single compound breaks down into two or more elements or simpler compounds. Example: AB → A + B.

Front

What is a Single Replacement Reaction?

Back

A reaction where one element replaces another in a compound. Example: A + BC → AC + B.

Front

What is a Double Replacement Reaction?

Back

A reaction where the anions and cations of two different compounds switch places, forming two new compounds. Example: AB + CD → CB + AD.

Front

What is a Combustion Reaction?

Back

A reaction that occurs when a substance combines with oxygen, releasing energy in the form of light or heat. Example: Hydrocarbon + O₂ → CO₂ + H₂O.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance that cannot be broken down into simpler substances, while a compound is made up of two or more elements chemically bonded together.

Front

Give an example of an element.

Back

Carbon (C) is an example of an element.

Front

Give an example of a compound.

Back

Sodium chloride (NaCl) is an example of a compound.

Front

What is the general formula for a Combination Reaction?

Back

A + B → AB.

Front

What is the general formula for a Decomposition Reaction?

Back

AB → A + B.