Nonmetal + Oxygen → Nonmetal Oxide
However, the specific products and coefficients will vary depending on the specific nonmetal involved. Here are some examples:
1. Combustion of Carbon:
C(s) + O₂(g) → CO₂(g)
2. Combustion of Sulfur:
S(s) + O₂(g) → SO₂(g)
3. Combustion of Phosphorus:
4P(s) + 5O₂(g) → 2P₂O₅(s)
4. Combustion of Hydrogen:
2H₂(g) + O₂(g) → 2H₂O(g)
Important Note: The combustion of nonmetals often produces acidic oxides. For example, sulfur dioxide (SO₂) dissolves in water to form sulfurous acid (H₂SO₃).
General Observations:
* Exothermic Reaction: Combustion is always an exothermic reaction, releasing heat and light.
* Oxygen Requirement: All combustion reactions require oxygen as a reactant.
* Product Formation: The products of nonmetal combustion are usually oxides of the nonmetal.
* Incomplete Combustion: In some cases, incomplete combustion can occur, resulting in the formation of carbon monoxide (CO) or other incompletely oxidized products.
