Write sulfur dioxide reactions

Question

asked Apr 18, 2020 133k views

1 Answer

Krisy · Answer 1 · 2020-04-25T06:54:09+0000

Answer:

Sulfur dioxide is a covalent bond because we have two non-metals (Sulfur and Oxygen).

$S + O_(2) \to SO_(2)$ (Sulfur dioxide formula)

It's called Sulfur dioxide but it can be called Sulfurous anhydride and Sulfur (lV) oxide.

Sulfur dioxide can have different reactions:

In the presence of oxygen oxidation of sulfur dioxide to sulfur trioxide occurs and the formula is:

SO_(2)+(1)/(2) O_(2)= SO3

The equal is because it's a reversible equation. This reaction is spontaneous.

The sulfur trioxide reacting with water produces sulfuric acid. The formula is:

$3 SO_(2) + O_(3) \to 3 SO_(3)\\SO_(3) + H_(2)O \to H_(2)SO_(4)$

Also the sulfur dioxide reacting with sodium hydroxide produces sodium sulfite and the formula is:

$SO_(2) + 2 NaOH \to Na_(2)SO_(3) + H_(2)O$

And finally we have the reduction of sulfur dioxide (it can be in presence of hydrogen sulfide) getting elemental sulfur and water. The formula is:

$SO_(2) + 2 H_(2)S \to 3 S + 2 H_(2)O$