3.7 unorganic carboncompounds
What are inorganic compounds - a COMPOUND
Examples of inorganic carbon compounds: carbondioxide, carbonic acids. Carbonates, calcium carbonates
Atmosphere - how carbondioxide gass is made
Unorganic compunds, in the atmosphere: carbon gass.
Carbondioxide gass in the atmosphere: unatural- combustion of fossil fules, absorbs electromagnetic radiation
How carbondioxide gass absorb long electromagnetic radiation: CO2-molecule can absorb heatradiation -> the energy increases the rotation and vibration of the molecule. +
Ocean - how carbonic acid is made
Unorganic compunds, in the ocean and rainwater: carbonic acids, hydrogencarbon-ions, carbon-ions.
The pH of rainwater: 5.6
Carbonic acid formula: H2CO3
Creation of carbonic acid: +
Carbon acid when dissolved in water: disociates the H+ -ions in steps. (The reactions can og both ways) +
The prosses when the carbonic acid turns into HCO3- and water: (hydrogencarbonation)
The prosses when the carbonic acid truns into CO32-
Consequences of ocean acidification: interupts the DYNAMIC of the aquatic enviroments
Cause for struggle of marine life: increasing CO2 - consentrations make the ocean acidic, lack of available calcium-ions and carbonate-ions disolves calcium to make acidic water, and the marine has no calcium-ions and carbonate- ions to extract to form calcium carbonate for the shells and skeletons -> fragile shelled animals, corals
Example of shellfish that struggle with acidification: pteropod, tiny sea creature (size of a pea), major food source. When put in sea water reflecting the pH and carbonate levels for the year 2100 -> their shell nearly disapears. +
How does the marine life struggle with thinning shells?: to many hydrogen ions and not enough molecules for them to bond with -> breaks the existing calsium carbonate molecules apart and disolving shells.
Unorganic compunds, in the"litosfæren": kalkstein (limestone) a sedimentary rock with calsium carbonate, form dead fosils
Where does kalk in the "litosfæren" come from: shellfish, plankton, corals.
What does kalk consists of: CaCO3, a salt of calsium-ions (Ca2+) and carbon-ions (CO32-)
What is limestone used for: production of cement and concrete.
If limestone goes unto high pressure: it does from sedimentary to metamorfic, becomes marmor=marble