The Limestone Cycle Flashcards
1
Q
Limestone formula:
A
CaCO3
2
Q
quicklime formula:
A
CaO
3
Q
slaked lime formula:
A
Ca(OH)2
4
Q
lime water formula:
A
Ca(OH)2 (liquid)
5
Q
limestone uses:
A
neutralising acidic soil
building
6
Q
quicklime uses:
A
makes slakedlime
7
Q
slakedlime uses:
A
neutralises acidic soil
8
Q
lime water uses:
A
detecting CO2
9
Q
limestone to quicklime
A
HEAT IT. (endothermic)
CaCO3 = CaO+CO2
10
Q
quicklime to slaked lime
A
ADD A LITTLE WATER.
CaO + H2O = Ca(OH)2
11
Q
slaked lime to lime water
A
ADD LOTS OF WATER .
Ca(OH)2 + H2O = Ca(OH)2
12
Q
limewater to limestone
A
ADD CO2
Ca(OH)2 + CO2 = CaCO3
