Magnesium reacts with oxygen gas to produce magnesium oxide, light, and heat. What type of reaction is this?
Combustion (also oxidation-reduction)
Maybe we want to try to imagine the chemical system, which could look like this:
Remember that combustion reactions occur when a species reacts with
These reactions are also oxidation-reduction reactions, but are by no means the only type of oxidation-reduction reaction which can occur.
Here is a short video which shows what this reaction looks like.