Calcium carbonate

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  • Examples Of Ocean Acidification

    foundation organisms, such as living corals. Coral contains calcium carbonate, a mineral that is used to form the supporting skeletal structures found in many marine organisms (2 ). Calcium…

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  • The Effects Of CO2 On The Oceans

    increases the concentration of hydrogen ions in the ocean, which then decreases the overall pH, causing acidification. This acidification can have a detrimental effect on marine biota through two main mechanisms: hypercapnia and the dissolution of calcium carbonates. Hypercapnia is the acidification of an organism’s body fluids and tissues due to increased CO2 partial pressures. This process has been shown to have long term effects on the physiology of water breathing animals including metabolic…

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  • Benefits Of Ocean Acidification

    The ocean is a vast vista of blossoming life and mysterious wonders that lurk in the deep. Our exquisite ocean is being ravaged through a process known as ocean acidification. Ocean acidification is the process of carbon dioxide and numerous gases being absorbed into the ocean, which raises the ocean’s pH, causing it to become more acidic. Contrary to popular belief, terrestrial vegetation does not intake all of the carbon dioxide in the atmosphere. The ocean absorbs about fifty-percent of…

    Words: 340 - Pages: 2
  • Inorganic Chemistry Experiment 3: The Identification Of Unknown

    experiments were carried out in order to identify 15 samples, through their physical and chemical properties. Theory A precipitation reaction is one which produces an insoluble salt as product. An example would be; Ca(NO3)2 + H2SO4 = CaSO4 + 2HNO3 The calcium salt is insoluble. Precipitation reactions could be used in this experiment to eliminate compounds while attempting to identify others. Halides react with AgNO3 to form insoluble halides. These ions form white-yellow precipitates that…

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  • Chemical Nature Due To The Effects Of Global Warming

    causing changes in the seawaters chemistry. When carbon dioxide is absorbed from the atmosphere into the oceans it forms a carbonic acid. This is shown in the equation below: CO2 (g) + H2O ⇒ H2CO3 The carbonic acid then breaks down into hydrogen carbonate (HCO3-) and a single hydrogen ion. H2CO3 ⇒ [H+] +…

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  • Great Barrier Reef Ocean Acidification

    Long term records of coral calcification across the Central Great Barrier Reef show a 14.2% decline in calcification rates since 1990 (D’Olivo et al., 2013). Aragonite, a carbonate mineral considered a prerequisite for biotic calcification, is more easily dissolved when oceanic carbonate concentrations fall. According to a study published by the American Association for the Advancement of Science, “since industrialization, global average atmospheric carbon dioxide has increased…

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  • Eggshell Research Paper

    Eggshells are made up of a brittle white substance called calcium carbonate, which is also found in cave stalactites. Along with calcium carbonate is the remaining five percent calcium phosphate, magnesium carbonate, and soluble and insoluble proteins (Senese, 2010). The shell is covered with over seventeen thousand tiny pores allowing air to pass through. The semipermeable membrane…

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  • Difference Between Single And Double Displacement Reaction

    chemical compounds exchange and produce two new compounds. In the reaction, Calcium and magnesium element of two compounds exchange, forming the calcium sulfate and magnesium chloride. I noticed that during the reaction, some white powder is produced and starts precipitating at the bottom of the test tube. After checking calcium sulfate and magnesium chloride in the solubility table, I found out that the precipitate is calcium sulfate as it is insoluble in water. In addition, double…

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  • Lab Report: Classifying Chemical Reactions

    ¾ inch of the Copper(II)Carbonate was placed into a test tube. The test tube, by means of a clamp, was fastened to a ring standard to be heated by the Bunsen Burner. A one hole rubber stopper fitted with a glass tube was fitted into the top of the test tube. A measurement of 5 ml of the Limewater was placed into a graduated cylinder. With test tube holders, a separate test tube was held over the end of the glass tubing to collect the gas produced. The Copper(II)Carbonate was heated until it…

    Words: 1370 - Pages: 6
  • FTIR Reflection

    separated carefully for FTIR analysis. FTIR spectrum reveals a series of bands related to fats and proteins. Calcium carbonate is the major constituent (about 90%) of the shell, but it is absent in the inner shell membrane as characteristic band at 712 cm-1 is not seen in the spectrum. However, characteristic bands at 870 cm-1 and 1450 cm-1 suggest that inner shell membrane possesses carbonate ion. The study concludes that the major constituent of inner shell membrane…

    Words: 812 - Pages: 4
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