Combination Reaction Definition

Some combustion reactions are combination reactions.
Some combustion reactions are combination reactions. PM Images, Getty Images
by Anne Marie Helmenstine, Ph.D.
Dr. Helmenstine holds a Ph.D. in biomedical sciences and is a science writer, educator, and consultant. She has taught science courses at the high school, college, and graduate levels.
Updated March 06, 2017

Combination Reaction Definition: A combination reaction is a reaction where two reactants are combined into one product.

Examples: C + O2 → CO2, or the burning of carbon in the presence of oxygen to produce carbon dioxide is a combination reaction.