C13 - Carbonates Flashcards
1
Q
The limestone cycle
A
- CaCO3(s) ==> CaO(s) + CO2(g)
- CaO(s) + H2O(I) ==> Ca(OH)2(aq)
- Ca(OH)2(aq) + CO2(g) ==> CaCO3(s) +H2O(I)
2
Q
What process does the limestone cycle go through
A
thermal decomposition
3
Q
What is the name for CaO
A
quicklime
4
Q
What is the name of Ca(OH)2
A
slake lime
5
Q
What is slake lime used for
A
to put on acidic soil to neutralize it
6
Q
How can plants be acidic
A
from acid rain when the pH is less than 5.5
7
Q
What observation can be made when testing for CO2 with lime water
A
it goes cloudy and milky
