Carbonate

Alkalinity is a measure of the ability of a water to resist changes in pH. Alkalinity in water is due to the presence of weak acid systems that consume by hydrogen ion produced by other reactions, allowing chemical or biological activities to take place within a water without changing the pH (1). In this way the alkalinity protects aquatic life. The measured value may vary considerably with the end-point pH used. Alkalinity is a measure of an aggregate property of water and can be interpreted…

rocks into the water. These elements are then precipitated as Fe- Mn oxides and hydroxides (such as goethite, hematite, magnetite and manganite), and carbonates during magmatic lull. Iron-manganese precipitation in the shallow depositional environment in the Venarch area has formed the bands of manganese, hematite, silica, and calcium carbonates. The Mn mineralization in Veanrch deposit has occurred as bands, laminates, and manganese layers concurrent with the other volcano sedimentary rocks.…

The article “Hidden Battles on the Reefs: How Will Coral Reefs Fare in a Changing Ocean?” was written by Tom DeCarlo and was published in Volume 51, Issue 2 of the journal Oceanus in 2016. I accessed the article through the University of West Florida’s library’s website by searching for the Opposing Viewpoints in Context database under the “A-Z Database List.” Once in the database, one can search the title of the article in the search box to locate it. DeCarlo intended this article to be read by…

placed in the test tube, and observations are recorded. Go to next lab and come back and record observations Part B #3 a sample of 10ml copper (II) sulfate is obtained, then places in a test tube and recorded the observations. A 10ml of potassium carbonate was placed into a test tube to be observed and recorded. The two solutions are mixed and the observations were recorded. Go to next lab and come back and record observations Part C #5 A sample of 15ml of hydrogen peroxide is placed into a…

to determine the mole ratio, mass of the product and the chemical reaction for hydrochloric acid with sodium carbonate. Procedure : Place a clean , dry 18x150mm test tube in a clean , dry 150mL beaker. Add a glass bead or a glass boiling chip to the test tube . Weight the test tube + beaker +boiling chip to the maximum precision of the balance . Add approximately 0.3g of sodium carbonate, to the test tube, and weight the test tube + beaker . Using a dropper , add 3M hydrochloric acid , HCL .…

Secondary Hyperparathyroidism, what are the causes, clinical features, how would you diagnose and manage such patients? Secondary hyperparathyroidism usually results from parathyroid hyperplasia producing excess PTH. It is also characterized by low calcium. Etiology- • Usually it happens secondary to chronic renal failure. (90% of the CRF patients develop secondary hyperparathyroidism during initiation of dialysis. • Osteomalacia, rickets, severe vitamin D deficiency and malabsorption. •…

have been insoluble and was formed in one of the other reactions. It is possible a reaction could have happened but not enough precipitate was formed so it was not visible to the human eye. When reacted with sodium carbonate a white precipitate was formed. This is due to calcium carbonate being insoluble. When reacted with potassium nitrate no precipitate was formed. This is due to both products potassium chloride and calcium nitrate being soluble in…

If decomposition is sufficiently exothermic, a positive feedback loop is created producing thermal runaway and possibly an explosion. Many metal carbonates take part in thermal decomposition reactions. For example, copper carbonate breaks down easily when it is heated. Copper carbonate is green and copper oxide is black when not heated. A color change occurs during the reaction that causes this. The carbon dioxide produced can be detected using limewater, which turns…

Dentonic’s main ingredients are calcium carbonate (98.5%), essential oils (1%) and sodium saccharin (0.5%). Calcium carbonate imparts this ability in dentonic and sodium saccharin is used as a sweetening agent. These three varieties include the 45 gram, the 90 gram and 130 gram family packs of Dentonic available in the market. Talking about the quality of Dentonic as a product, Dentonic is made up of 100% food grade calcium carbonate and Ala chemicals uses tryclozan which is an anti-bacterial…

the surrounding seawater, trace elements are recorded within the shell, indicative of information detailing the surrounding water. Most species of brachiopod shells are composed of a low-magnesium calcite, one of the most stable forms of skeletal carbonate; much less prone to diagenesis than other species. These shells are then…