Nitrogen Dioxide (NO₂) and Nitric Acid (HNO₃)
* Reaction: Nitrogen dioxide (NO₂) reacts with water (H₂O) in the presence of oxygen (O₂) to form nitric acid (HNO₃).
* Chemical Equation: 3NO₂ + H₂O → 2HNO₃ + NO
Sulfur and Sulfuric Acid (H₂SO₄)
* Reaction: Sulfur (S) reacts with oxygen (O₂) to form sulfur dioxide (SO₂). Sulfur dioxide then reacts with water (H₂O) and oxygen (O₂) to form sulfuric acid (H₂SO₄).
* Chemical Equation:
* S + O₂ → SO₂
* 2SO₂ + O₂ + 2H₂O → 2H₂SO₄
Important Notes:
* Acid Rain: The formation of nitric acid and sulfuric acid in the atmosphere is a major contributor to acid rain.
* Industrial Processes: Both nitric acid and sulfuric acid are produced industrially on a large scale, primarily for use in fertilizers, explosives, and chemical manufacturing.
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