12. Sulfur

• Name some sources of sulfur

• Name the use of sulfur in the manufacture of sulfuric acid

• State the uses of sulfur dioxide as a bleach in the manufacture of wood pulp for paper and as a food preservative (by killing bacteria)

• Describe the manufacture of sulfuric acid by the Contact process, including essential

conditions and reactions

• Describe the properties and uses of dilute and concentrated sulfuric acid