Types of Chemical Reactions

Front

What is a chemical reaction?

Back

A process in which substances (reactants) undergo a transformation to form new substances (products).

Front

What evidence indicates a chemical reaction has occurred?

Back

The production of a new substance is the best evidence of a chemical reaction.

Front

What is combustion?

Back

A chemical reaction that occurs when a hydrocarbon reacts with oxygen, producing carbon dioxide and water.

Front

What is the general formula for a decomposition reaction?

Back

AB → A + B.

Front

What is the general formula for a synthesis reaction?

Back

A + B → AB.

Front

What is a single replacement reaction?

Back

A reaction where one element replaces another in a compound, represented by the formula A + CD → C + AD.

Front

What is a double replacement reaction?

Back

A reaction where two compounds exchange components, typically represented by AB + CD → AD + CB.

Front

What is the difference between reactants and products?

Back

Reactants are the starting substances in a chemical reaction, while products are the new substances formed.

Front

What is an example of a combustion reaction?

Back

Burning of methane (CH₄) in oxygen to produce carbon dioxide (CO₂) and water (H₂O).

Front

What happens to the atoms in a chemical reaction?

Back

Atoms are rearranged to form new substances, but they are not created or destroyed.