types of reactions

Front

What is a chemical change?

Back

A process where substances transform into different substances with new chemical and physical properties.

Front

Which of the following is an example of a chemical change?

Back

Using magnesium to displace hydrogen gas from water.

Front

What is decomposition?

Back

A type of reaction where a single compound breaks down into two or more simpler products.

Front

What is a synthesis reaction?

Back

A reaction where two or more reactants combine to form a single product.

Front

What is a single replacement reaction?

Back

A reaction where one element replaces another element in a compound.

Front

What is a double replacement reaction?

Back

A reaction where the anions and cations of two different compounds exchange places to form two new compounds.

Front

What is combustion?

Back

A chemical reaction that occurs when a substance reacts rapidly with oxygen, producing heat and light.

Front

What is the generalized equation for a decomposition reaction?

Back

AB → A + B.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change alters the form of a substance but not its chemical composition, while a chemical change results in the formation of new substances.

Front

What is an example of a synthesis reaction?

Back

The reaction of hydrogen and oxygen to form water: 2H₂ + O₂ → 2H₂O.