a) for a we first need to find a balanced equation for when the hydrocarbons combust to form CO2 and H20. Then we plug in the deltaHf values and plug these into the equation. a) C4H6 + 11/2O2 ==> 4CO2 + 3H2O Delta Hrxn = [4DeltaHf(CO2)+3DeltaHf(H2O)] - [DeltaHf(C4H6) + 11/2DeltaHf(O2)] = [4(-393.5kJ) + 3(-285.83kJ)] - [111.9kJ + 11/2(0kJ)] = -2543.39kJ C4H8 + 6O2 ==> 4CO2 + 4H2O Delta H rxn = [4DeltaHf(CO2) + 4DeltaHf(H2O)] - [DeltaHf(C4H8) + 6DeltaHf(O2)] = [4(-393.5kJ) + 4(-285.83kJ)] - [1.2kJ +6(0kJ)] = -2718.52kJ C4H10 +13/2O2 ==> 4CO2 +5H2O DeltaHrxn = [4DeltaHf(CO2) + 5DeltaHf(H2O)] - [DeltaHf(C4H10) + 13/2DeltaHf(O2)] = [4(-393.5kJ) + 5(-285.83kJ)] - [-124.7kJ +
The Phosphorus Cycle is representative of the cycle of all biologically important mineral nutrients-those elements that have their origin in the rock and soil minerals of the Lithosphere, such as iron, calcium, and potassium. Humans have a serious intrusion into the Phosphorus Cycle that comes from the use of Phosphorus Cycle that contains fertilizers. Phosphorus is mined all around the world then made into fertilizers, animal feeds, detergents and other products. (Wright & Boorse) The third cycle that Humans impact in the Ecosystem is the Nitrogen Cycle. The Nitrogen Cycle is the process by which Nitrogen is converted between its various chemical forms.
According to Hopkins (2006), photosynthesis is the process by which green plants and certain organisms transform itself from light energy into chemical energy. As a straight forward chemical reaction in which carbon dioxide comes from the air, along with the midair and water from the soil, photosynthesis conglomerates to produce what is known as carbohydrate (p. 6). Solar Energy produced by photosynthesis, stores itself in a chemical bond of a carbohydrate molecule. Sugar known as glucose is then formed which becomes convenient both by way of energy to be stored for later use in tissues or by way of carbon to be used for cells (p.7). Hopkins, w. G. (2006).
Some of the dissolved carbon dioxide remains in the water, the warmer the water the less carbon dioxide remains in the water. Some carbon dioxide is used by algae and phytoplankton through the process of photosynthesis. In the natural carbon cycle, there are two main processes which occur: * Photosynthesis = plants use carbon dioxide and produce oxygen. * Metabolism = oxygen is used and carbon dioxide is a product Humans impact the carbon cycle during the combustion of any type of fossil fuel, which may include oil, coal, or natural gas. Fossil Fuels were formed very long ago from plant or animal remains that were buried, compressed, and transformed into oil, coal, or natural gas.
Form structural components in cells and tissues. Photosynthesis is a complex series of reactions carried out by algae, phytoplankton, and the leaves in plants, which utilize the energy from the sun. The simplified version of this chemical reaction is to utilize carbon dioxide molecules from the air and water molecules and the energy from the sun to produce a simple sugar such as glucose and oxygen molecules as a
In leaves, photosynthesis involves the photolysis of water, a process that involves the attachment of two electrons to a magnesium ion in chlorophyll and the production of hydrogen ions from the breakdown of water. Together with the electrons, the hydrogen ions are used to reduce NADP in the light-dependent reaction in the thylakoid. The hydrogen
Photosynthesis is the process where light energy is converted into chemical energy in the form of glucose. Its overall equation is: 6CO2 + 6H20 + light energy C6H12O6 + 6O2. The process of photosynthesis can be split into two reactions: the light-dependent reaction in the thylakoids and the light-independent reaction in the stroma. During the light-dependent reaction, light energy from the Sun is absorbed by chlorophyll (found in the chloroplasts in the leaf). This causes the excitation of two electrons, and they move to a higher energy level.
The bromine is acting first like an electrophile, and then after bromine has broken the π bond, a carbocation has formed, and a bromide ion has been created, the bromide ion then acts as the nucleophile and forms a bond with the carbocation. This experiment uses bromination, the specific name of halogenation with bromine. In order to for bromination to occur bromine must first be generated. This is done in situ through the oxidation of glacid acetic acid and puridinum bromide perbromide. Once generation is accomplished the available bromine can be brominated.
Break down and define common medical terms used for symptoms, diseases, disorders, procedures, treatments, and devices associated with the blood and lymphatic system. Build medical terms from word parts associated with the • • Word Search postings as indicated in Course Schedule Chapter 1 online Short Answer Quiz and Chapter 1 online examination Mini Medical Record Reviews optional extra credit • blood and lymphatic system. Pronounce and spell common medical terms associated with the blood and lymphatic system. Chapter 8 The Cardiovascular System Upon completion of this chapter, the student should be able to: • • • • • Define and spell the word parts used to create medical terms for the cardiovascular system. Break down and define common medical terms used for symptoms, diseases, disorders, procedures, treatments, and devices associated with the cardiovascular system.
In plants the way they get there energy is through sun light where they have process called photosynthesis where they produce and release oxygen in the air. Photosynthesis requires direct sunlight, carbon-dioxide, and water. In this process of photosynthesis, plants decompose the molecules of hydrogen and carbon dioxide into hydrogen, then carbon and oxygen produces glucose which forms their source of energy, food and growth. Solar cells similar to this process get sunlight where light in the form of photons hits the solar cell and are absorbed by semiconducting materials such as silicon. Negative electrons are break free from their atoms, causing them with an electric potential difference.