investigate the rate of reaction between Calcium Carbonate and Hydrochloric Acid. Just from looking at the aim of the investigation I already know that a salt would be formed because a carbonate with an acid forms a salt. In this investigation the substance that is formed is Calcium Chloride, Water and Carbon Dioxide. The symbol equation for this is: CaCo3  Ca2+ + Co32- Hcl  H+ + Cl- Add these all together to get CaCO3(s) + 2H+(aq) --> Ca++(aq) + H2O + CO2(g) The rate of reaction is
cycle is ever so slightly reducing atmospheric CO2 , which will ultimately bring the concentration down near zero, causing all life on the planet to be wiped out. The carbon cycle, including both terrestrial and aquatic processes, is the foundation under which photosynthesis is possible. Aside from the carbon cycle, CO2 is a key element in many other natural processes and phenomena such as the “Greenhouse Effect” and “Global Warming”. After the advent of the second atmosphere, the atmosphere “had
As the burning of fossil fuels becomes more prevalent in industries throughout the world, the emissions of carbon dioxide inevitably increases and cause a surplus of the gas in the environment. The excess of carbon dioxide leads to adverse effects, such as global warming, and results in the need for techniques to be implicated in order remove the CO2. Understanding how carbon dioxide can affect life on Earth has prompted carbon dioxide scrubbing to become a practice exercised by not only companies
environmental problems and it is closely related to the air pollution. Nowadays, it has affected large part of US, Europe and Canada. People start to be concerned about acid rain since it is getting worse in the passed years. The effect of the acid rain most often leads to another bad effect. For example, the acid rain will cause the lake and streams to be acidic. Thus, it will also affect the ecosystem inside the water. Acid rain is one form of air
from human actives and unfamiliar chemical reactions that weren’t occurring in the water before. This has various effects on the actual body of water. Factors which are affected: Resistance in organisms, fluctuation of the temperature stresses organisms, lowering their resistance to pollutants diseases and parasites (effectively changing water quality), metabolic rate of the organisms, rate of plant growth and solubility of dissolved oxygen (the lower the water temperature the more gases that can be
6. URANIUM IN MUDROCKS - BLACK SHALES It has been broadly recognized that black shales can be hosts of a significant amount of Uranium when compared to other sedimentary rocks (Swanson, 1961). The black shales are very attractive because these typically contain good quantities of organic matter, and therefore, are potential stratigraphic intervals for source of hydrocarbons (Peters and Cassa, 1994). The generated hydrocarbons (oil and natural gas) from these shales are derived directly from the thermal
powdered) the rate of reaction also increases. This means that there are more collisions between the solid and liquid.) * Amount of tap water H2O used, i.e. volume (ml). * Amount of Alka-Seltzer tablets used, i.e. quantity of tablets. (one is used) *
boreholes or wells. Deep ground water is generally of very high bacteriological quality (i.e., pathogenic bacteria or the pathogenic protozoa are typically absent), but the water may be rich in dissolved solids, especiallycarbonates and sulfates of calcium and magnesium. Depending on the strata through which the water has flowed, other ions may also be present including chloride, and bicarbonate. There may be a requirement to reduce the iron or manganese content of this water to make it acceptable for
during transitory pollutionincidents in the source river. 4. Pre-chlorination – In many plants the incoming water was chlorinated to minimize the growth of fouling organisms on the pipe-work and tanks. Because of the potential adverse quality effects (see chlorine below), this has largely been discontinued.[3] Widely varied techniques are available to remove the fine solids, micro-organisms and some dissolved inorganic and organic materials. The choice of method will depend on the quality of the
The colloidal ettringite crystals are formed by a through-solution mechanism in the presence of saturated calcium hydroxide. The presence of calcium hydroxide decreases the reaction rate of aluminates, thus it causes the formation of colloidal sized ettringite crystals. Because, the colloidal ettringite crystals have a high specific surface area and they be able to adsorb water which surround the