Carbonates Flashcards
1
Q
Manufacture of calcium oxide (lime)
A
Calcium carbonate (limestone) decomposes into calcium oxide (lime) and carbon dioxide with heat.
Water can be added to calcium oxide to form calcium hydroxide (slaked lime).
2
Q
What goes milky in the presence of carbon dioxide.
A
limewater
3
Q
Uses of Calcium oxide (lime) and calcium hydroxide (slaked lime)
A
They are both used to treat acidic soils and neutralize acidic wastes.
4
Q
Uses of calcium carbonate
A
Cement manufacture
Iron extraction
Glass making
Road building