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Stalactites Presented by Joseph, Kaden and Andre
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A stalactite from the Greek word stalasso “to drip” and meaning “that which drips” is a type of speleothem (secondary mineral) that hangs from the ceiling of limestone caves. It is a type of drip stone. The corresponding formation on the floor caves is known as a stalagmite. photo of the Kelly Hill Limestone caves at Kangaroo Island
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Stalactites are formed by the deposition of calcium carbonate and other minerals, which is precipitated from mineralized water solutions. Limestone is the chief form of calcium carbonate rock which is dissolved by water that contains carbon dioxide, forming a calcium bicarbonate solution in underground caverns. E very stalactite begins with a single mineral-laden drop of water. When the drop falls, it deposits the thinnest ring of calcite. Each subsequent drop that forms and falls deposits another calcite ring. This is a synthesis reaction and t he chemical formula for this reaction is: CaCO3 + H2O + CO2 Ca(HCO3)2 Formation and type
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Calcium Carbonate (Ionic)
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Calcium Carbonate + Water (Water is Covalent)
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Calcium Carbonate + Water + Carbon Dioxide (Carbon Dioxide is Ionic)
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Calcium Carbonate + Water + Carbon Dioxide Calcium Bicarbonate
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++ CaCO3 + H2O + CO2 Ca(HCO3)2
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Science Centric Group of scientists who answer questions and blog about request from viewers Study many forms of Science including Chemistry
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Work Cited http://en.wikipedia.org/wiki/Stalactite http://en.wikipedia.org/wiki/Stalactite http://www.goodearthgraphics.com/virtcave/staltite/staltite.html http://www.goodearthgraphics.com/virtcave/staltite/staltite.html http://science.howstuffworks.com/environmental/earth/geology/stala ctite-stalagmite.htm http://science.howstuffworks.com/environmental/earth/geology/stala ctite-stalagmite.htm http://en.wikipedia.org/wiki/File:Tropfsteinanimation.gif http://en.wikipedia.org/wiki/File:Tropfsteinanimation.gif http://www.all-water.org/H2O_Images/640px- Water_molecule_3D.svg.png http://www.all-water.org/H2O_Images/640px- Water_molecule_3D.svg.png http://www.globalwarmingart.com/images/7/7d/Carbon_Dioxide_Mol ecule_VdW.png http://www.globalwarmingart.com/images/7/7d/Carbon_Dioxide_Mol ecule_VdW.png http://www.sciencephoto.com/image/450636/350wm/F0046906- Calcium_carbonate_molecule-SPL.jpg http://www.sciencephoto.com/image/450636/350wm/F0046906- Calcium_carbonate_molecule-SPL.jpg http://chemwiki.ucdavis.edu/@api/deki/files/6267/=Carbonate-3D- balls.png http://chemwiki.ucdavis.edu/@api/deki/files/6267/=Carbonate-3D- balls.png http://www.asbmb.org/assets/0/366/418/428/1186/1188/1200/63ddb f3f-b498-4d7d-8040-b12c4f96fff2.jpg http://www.asbmb.org/assets/0/366/418/428/1186/1188/1200/63ddb f3f-b498-4d7d-8040-b12c4f96fff2.jpg http://michael-mcginnis.com/images/ScienceCentric.jpg http://michael-mcginnis.com/images/ScienceCentric.jpg
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