IGCSE CHEMISTRY 0620 LESSON 19 EXPLANATION


PART 5

Lesson 19


12 Sulfur12.1 SulfurCoreName some sources of sulfurName the use of sulfur in the manufacture of sulfuric acidState the uses of sulfur dioxide as a bleach in the manufacture of wood pulp for paper and as a food preservative (by killing bacteria)SupplementDescribe the manufacture of sulfuric acid by the Contact process, including essential conditions and reactionsDescribe the properties and uses of dilute and concentrated sulfuric acid13 Carbonates13.1 CarbonatesCoreDescribe the manufacture of lime (calcium oxide) from calcium carbonate (limestone) in terms of thermal decompositionName some uses of lime and slaked lime such as in treating acidic soil and neutralising acidic industrial waste products, e.g. flue gas desulfurisationName the uses of calcium carbonate in the manufacture of iron and cement




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