Calcium carbonate

There are two basic types of fireworks that form the big displays in the sky: firecrackers and sparklers. They are made in different ways. Firecrackers are rolled paper tubes that are filled with gunpowder called black powder or a fuse and flash paper. As you light the fuse, fire burns along the fuse and when it reaches the powder there is a loud explosion. Sparklers, though, make colorful, long lasting light. They contain more ingredients which means they burn longer and produce a light and…

by all aquatic organisms. Oxygen is used by the organisms to breathe. Carbon dioxide is used by seaweed and other algae during photosynthesis. Also the levels of carbon dioxide affect the balance of acids and bases in saltwater when it produces carbonate ions under specific conditions (Duke University, n.d.). There is a lot of carbon dioxide in the ocean because of the burning of fossil fuels, coals, oils, and natural gases. The dumping of our waste into the ocean also affects the amount of…

Hardness : Hardness of water is a measure of the total concentration of the total concentration of the calcium and magnesium ions expressed as calcium caebonates. Water that has high mineral content is known as hard water (Patil et al.,2012). Hard water contains bicarbonates, chlorides and sulphates of calcium and magnesium. 6. Alkalinity : Alkalinity is a measure of the ability of water to neutralize the acids and its ability to maintain relatively constant…

It can also be a chemical sedimentary rock formed by the precipitation of calcium carbonate from lake or ocean water.” Moreover both sculpture were conceive with different objectives, the sculpture of Gudea (WorldArt, 2013) “represent the ruler in temples, to offer a constant prayer in his stead; offerings were made to these. Most…

The Great Barrier Reef is a coastal habitat off the coast of Queensland, Australia. The system is the largest coral reef and living structure in the world, reaching around 2,575 in length. It’s made up of approximately 2,900 individual reefs with 900 islands. The Great Barrier Reef is the perfect habitat for many species of marine life such as coral and over one thousand five hundred species of fish. The reef contains many different life forms such as: fish, sea turtles, giant clams, sea snakes,…

2.1 Polydimethylsiloxane (PDMS) Polydimethylsiloxane (PDMS) own to a group of polymeric organosilicon compounds that are commonly stated as silicones. PDMS is optically clear, and, in general, non-flammable, non-toxic, and inert. PDMS is viscoelastic, meaning that at long flow times (or high temperatures), it acts like a viscous liquid such as honey. However, at short flow times (or low temperatures), it acts like an elastic solid such as rubber. In other words, PDMS will flow to cover the…

rainfall and on the opposite side of the spectrum, droughts. Acidification is also harmful to organisms that use calcium carbonate to make shells for protection. A few examples of these organisms include phytoplankton, coral as well as sponges. Acidification would cause a domino effect, for example, if the organisms such as phytoplankton and coral that depended on calcium carbonate would die, then the other species that depended on those organisms for a food source would also die. (eaq.org)…

Earth is covered in approximately 71% water, 97% off all Earth’s water is found in oceans which provide for life on earth. Oceans are important because they provide over half of all oxygen in the atmosphere, but also absorb large amounts of gasses from the atmosphere. Unfortunately oceans are under the constant threat of not just overfishing or pollution, but mainly acidification which damages delicate ecosystems greatly. Ocean acidification is caused by the uptake of carbon dioxide (CO2) in the…

Acid rain is a precipitation which falls from the atmosphere to Earth. It contains a high level of nitrous oxide and sulphur dioxide. When they ge tin contact with water they transform to acid in the atmosphere, and then this acid is carried away by the wind thousaands of miles away from where they were created. The acidity is measured with the potential hydrogen (pH) on a scale from 0-14. The pH scale is a logarythmic measure which means that every change in pH is counted in the amount times…

in water that has a pH level less than five. Water with a low pH level causes gill damage in fish and death to fish embryos. With a level of five, most fish eggs cannot hatch. The effects of freshwater acidification as carbon source changes from carbonate (HCO3) to carbon dioxide (CO2), release of toxic metals, and freshwater fauna and flora gradually changes. Some species of fish or animal can tolerate reasonably acidic water, the animal or plants that eats it might not. Furthermore freshwater…