Types of Chemical Reactions

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

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

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

AB → A + B.

A + B → AB.

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

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

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

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

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