Jared Dorfman November 9, 2017 Period 1
Chemical Weathering
Background:
Chemical weathering is occurred by rainwater reaction to the mineral grains and it is new new rocks that form and become sobule. This reaction happen when the water is slightly acidic with the minerals and rainwater. Chemical weathering needs water, and when the temperature is warm the climate will grow. Words to understand when learning chemical weathering is mineral grains. (Mineral grains is found in very small rocks, and it is very hard to see them.) Chemical weathering takes place in almost all types of rocks. Smaller rocks are found in chemical weathering however, because they
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Sometimes carbon dioxide from the air and soil combine with the water. That produces a weak acid called carbonic acid that can dissolve rocks. Chemical weathering is made up of rocks and soil. And Carbon Dioxide is form from the air or the soil that is combined with the water. When it is all produced it will be called carbonic acid That will be able to dissolve rocks. Carbonic acid is dissolved into limestone. Carbonic can go underground into the limestone, and it can open up caves. Also, chemical weathering works with iron. They become rust and it becomes a process called oxidation. A word that people should understand more is limestone. (Limestone is a hard sedimentary rocks, and they are composed.) The Purpose: The purpose of this experiment is to demonstrate how chemical weathering affects the different types of rocks.
Hypothesis: If different rocks is put into acid then the limestone will add mass because it is a sedimentary rock is formed by sediment and often formed when weathering and erosion break down a
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Our hypothesis for this lab was that the limestone will add mass because it is a sedimentary rock, and weathering and erosion break down a rock. Our data refute our hypothesis because we said it will gain mass when the limestone lost mass. The limestones Initial mass was 3.67, and after we put it in the oven the mass went down too 2.81. The mass went down by 0.86. Also, the graph above shows our data. The red line of the graph was the change in mass after we put it in the oven, and the blue line is the Initial mass. The red line doesn't move that much. After we put the rocks in the oven only one changed in mass. The Limestone changed 0.86 in mass, Quartzite changed 0.00 in mass, and Obsidian changed 0.00 in mass. By that data the oven did not really change the difference in mass. The blue line is our initial mass. Limestone was 3.87, Quartzite was 67.51, and Obsidian was 10.63. In the graph it shows the blue line going up. Our initial mass goes up, but our final mass stayed the same besides the limestone changed by 0.86. In the graph there were two trends. One goes up, and the other one basically stayed the same. The initial mass had a bigger impact because we used 3 rocks, and they were different masses. For the final mass the trend wasn’t that good because two of the final masses stay the same at zero, and the one that changed in mass was only a 0.86
Noticeable indications of deterioration have been shown in numerous patients few hours prior to a critical condition (Jeroen Ludikhuize, et al.2012). Critical condition can be prevented by recognizing and responding to early indications of clinical and physiological deterioration ( kyriacosu, jelsma,&jordan (2011). According to NPSA (2007) delay in responding to deteriorating vital signs have been defined as an complication resulting in prolonged length of stay, disability or death, not attributed to the patient's underlying illness procedure along but by their health-care management ( Baba-Akbari Sari et al. 2006; Helling, Martin, Martin, & Mitchell, 2014). A number of studies demonstrate that changes or alterations in a patient’s
Investigating Factors Which Affect The Reaction Between Chalk and An Acid. Introduction: Chalk is just one of the many forms that calcium carbonate can take. It is made of the mineral remains of sea creatures from millions of years. ago.
Acid rain has been proven to have damage forests, fresh waters and soils, killing insect and aquatic life-forms. It also causes damage to buildings and impacts on human health. Many people do not know what acid rain actually is. Acid rain is any form of precipitation that is unusually acidic, low pH levels, higher than normal amounts of sulfuric and nitric acid, occurs naturally and from man made sources. Forms when gases react in the atmosphere with water, oxygen, and other chemicals (what is acid rain?). The only water that will not have some amount of acidity is pure water. Pure water has a pH of 7 which is neutral; regular, unpolluted rain water has a pH of around 5.6. The acidity in rain water comes from the presence of Carbon Dioxide, Nitrogen Oxide, and Sulfur Dioxide. CO2 reacts with water to form carbonic acid. Nitrogen and water react during lightning storms, forming Nitric Oxide. NO is then oxidized to form N02. The NO2 reacts with water to form nitric acid. Due to this, the pH is lowered to be slightly acidic (Acid Rain). Acid rain can occur naturally in the environment, but the problem occurs when human interaction is the cause of the acidic levels.
This particular sample of granite is phaneritic in texture as described by its visible crystals. The rate at which the rocks cool determines the size of the crystals, in this case, a steady cooling rate produces larger crystals (“Characteristics of Igneous Rocks” n.d). The rate at which rocks cool is also related to the temperature of cooling which determines a rocks mineral composition (“Characteristics of Igneous Rocks” n.d). A low cooling temperature yields rocks with higher amounts of potassium, aluminum, and silicon (“Characteristics of Igneous Rocks” n.d). This is evident by the abundance of potassium feldspar, which also makes granite a felsic
A good example would be the experiments with the concentrations of 20% to 60% concentration results to show the change. In the 20% concentration I noticed a decrease in the percentage change in mass for the experiment the percentage was _____ while for the concentration of sucrose 60% the change was _____ we can see that the percentage change in mass is decreasing thus we can conclude that the difference of the initial from the final and as it gets greater that means the mass of the potato changed massively.
Acid rain affects many different things and is very harmful to the environment. One aspect of the environment that is greatly affected by acid rain is soil. Acidic rain makes its way into the soil by rain falling off the branches and leaves to the soil below. Water runs through the soil on its way to different bodies of water. A process called buffering is used to neutralize acids using the base nutrients (including calcium and magnesium) found in soil (Tyson, 1992). This process helps soil resist the effects of acid rain.
Acid gases are produced when fossil fuels like coal and oil are burned in power stations, factories and in our own homes. Acid rain is rain that has been made acidic by certain pollutants in the air. Most of these acid gases are blown into the sky, and when they mix with the clouds it can cause rain - or snow, sleet, fog, mist or hail - to become more acidic. Acid rain is rain that has been made acidic by certain pollutants in the air. Acid rain occurs when these gases react in the atmosphere with water, oxygen, and other chemicals to form various acidic compounds. The result is a mild solution of sulfuric acid and nitric acid. When sulfur dioxide and nitrogen oxides are released from power plants and other sources, prevailing winds blow these
Colorado is home to eleven national parks, with different stories to be told in each one! One of those parks is the Rocky Mountain National Park. In this park alone you can find all three rock types of all ages. For example, there is Silver Plume granite that “intruded upward into the metamorphic rocks about 300 million years after the formation of the Proterozoic mountains” and can be found in the eastern side of the park (“Geology resources division,” 2007). Geologist are unsure what caused this
It is most commonly associated with coal mining, especially with soft coal, coal that has high sulphur content. The pyrite that is present in coal seams will be accessible after surface mining when the overlying surfaces are removed or in deep mines that allow oxygen access to the previously inaccessible pyrite-containing coal (D.E.P. 1, 1997). The. After pyrite is exposed to air and water, sulphuric acid and iron hydroxide are formed, creating an acidic runoff (D.E.P. 1, 1997; 2, 2002). When the water comes into contact with the pyrite, the chemical reactions that take place causes the water to increase in pH, which will dissolve heavy metals which stay in solution.
Chemical Weathering is when water weakens the structure of the rock and Mechanical Weathering is where water seeps into the rock face causing fragments of rock to break off.
seems to be at a higher rate in urban areas than that of rural areas
Next the loose sediment is converted into sedimentary rock in compaction, cementation, and recrystallization. Compaction is when the air and water is pushed out of the bottom layer of sediment as more layers build up and press down on it. Cementation is when the sediment is cemented together with natural cements like calcite and silica. This process of the loose sediment being converted into sedimentary rock is called lithification (Rocks of Idaho). Recrystallization is when unstable minerals recrystallize to form more stable minerals (South Carolina Geological Survey).
Acid rain is when chemicals like nitrogen and sulphur-dioxide are released into the atmosphere and react with the water vapour, and acid pours in form of rain. This is very dangerous because it destroys infrastructures and some buildings, and also dissolves the human
Acid rain comes in wet deposition or dry deposition. Wet deposition is any form of precipitation that removes acids from the atmosphere and deposits them on the Earth’s...
Coil, D., McKittrick, E., and Higman, B. (2010, December 16). Acid Mine Drainage. Ground Truth Trekking. Retrieved February 12, 2011, from http://www.groundtruthtrekking.org/Issues/MetalsMining/AcidMineDrainage.html