Calcium carbonate (limestone) is heated to produce calcium oxide (lime) and carbon dioxide in an irreversible chemical reaction. Lime is used to treat acidic soil by neutralizing its acidity and making nutrients available to plants. It is also used to neutralize industrial waste products by reacting with acids to produce salts and water.

1. 07/09/13
C13 CarbonatesC13 Carbonates
Syllabus statementsSyllabus statements

2. C13 CarbonatesC13 Carbonates
1. Describe the manufacture of lime (calcium
oxide) from calcium carbonate (limestone) in terms
of the chemical reactions involved, and its uses in
treating acidic soil and neutralising industrial
waste products.