A STUDY GUIDE for SCIENCE
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Event Information
A QUIZ. YAYAYAYYAYAYAYYAYAYAY!
When?
Monday, Mar 16, 2015, 01:45 PM
Where?
Pine Crest School, Saint Andrews Boulevard, Boca Raton, FL, United States
STUFF U SHOULD KNOW. YAAAAAAAAAAAAAAAAAAAY
Limestone / Sinkhole Notes
Characteristics
- Porous
- Soft
- Soluble in H2O
They occur because
- lots of lime stone
- water underground (aquifer)
- once covered ocean ----> soft calcium deposits (dead animals)
Sulfuric Acid Notes
Discovered in 8th century by Alchemist ---> alchemy (basically chemistry
Uses
- lead acid batteries (Cars)
- fertilizers
- steel industries
- dried fruit production (hydrotropic)
Magnesium carbonate and acid
- was CO2
- Denser than air
Magnesium and Acid
- was hydrogen
- lighter than air
- very flammable
- pushes air out when ignited which makes a pop
Acidification Post lab
Phenol Red
- changes color as CO2 is added to H2O
More Notes
- the CO2 turns to carbonic acid lowering the ph of H2O
- calcium tablet is more soluble in cup w/ straw b/c the carbonic acid lowers ph and dissolves calcium faster
Ocean Acidification
Normal Ocean ph is 8.1 - 8.4
- ocean ph has decreased 0.1 which is 25%
- lower ocean pH means sea animals w/ shells will not be able to make a shell (crabs, shrimp, clams, ect.)