What is Sulfurous acid?
[[File:Sulfurous-acid-3D-balls.png|thumb|Sulfurous acid chemical structure]] '''Sulfurous acid''' is a weak [[acid]] with the chemical [[formula]] H<sub>2</sub>SO<sub>3</sub>. It is produced by dissolving [[sulfur dioxide]] in water. [[Base (chemistry)|Bases]] [[deprotonation|deprotonate]] (remove the [[Hydrogen]] ion) it to produce [[sulfite]]s. It tends to turn back into sulfur dioxide and water again. It is a weak [[reducing agent]]. ==Related pages== *[[Sulfuric acid]] *[[Sulfate]] *[[Sulfur]] {{chem-stub}} [[Category:Acids]] [[Category:Sulfur compounds]]