When we talk about combustion reactions, there are two main types you should know: complete and incomplete combustion. Let’s break down the big differences between them:

1. Complete Combustion:

   • What It Makes: Usually produces carbon dioxide (CO₂) and water (H₂O).
   • Oxygen Needed: Happens when there is enough oxygen available.
   • Energy Output: Gives off a lot of energy, which makes it more efficient.

2. Incomplete Combustion:

   • What It Makes: Produces carbon monoxide (CO), soot (which is carbon), and less carbon dioxide (CO₂).
   • Oxygen Needed: Occurs when there isn’t enough oxygen.
   • Energy Output: Releases less energy and can be dangerous because of the carbon monoxide.

Knowing these differences is important for using fuels safely and effectively!