Chemistry › Section R · Metals, metalloids, and nonmetals › Topic R.6
Oxygen and sulfur
Oxygen is the most abundant element in the Earth's crust and combines with almost everything; sulfur, just below it in group 16, is the raw material for sulfuric acid, the chemical that industry makes in the largest amount. Together they also explain acid rain.
In this topic
- Oxygen: abundant and reactive
- Two allotropes: O₂ and O₃
- Oxides, peroxides and superoxides
- Worked example: oxygen from hydrogen peroxide
- Sulfur and its allotropes
- Sulfur's compounds
- Sulfuric acid: the contact process
- Worked example: sulfuric acid from sulfur
- Acid rain
- Common mistakes to avoid
- Key takeaways
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