In burning reactions, there are two main types:

Complete Combustion

• What Happens: This happens when there is a lot of oxygen.
• What It Makes: It creates carbon dioxide (CO₂) and water (H₂O).
• Example: When methane (CH₄) burns, it reacts with oxygen like this: CH₄ + 2O₂ → CO₂ + 2H₂O

Incomplete Combustion

• What Happens: This occurs when there isn’t enough oxygen.
• What It Makes: It produces carbon monoxide (CO), soot (which is just carbon), and water.
• Example: When more methane (CH₄) burns with less oxygen, it reacts like this: 2CH₄ + 3O₂ → 2CO + 4H₂O

Knowing about these burning reactions is important. It helps us understand why complete combustion is better for getting energy and for keeping things safe!