conservation of mass. These results do not obey the law of conservation of mass. Possibly she made a mistake recording her numbers. 28. When 31 g of phosphorus reacts with oxygen‚ 71 g of an oxide of phosphorus is the product. What mass of oxygen is needed to produce 13 g of this product? 31g + x = 71g 71g - 31g = 40g oxygen This means that in
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(Figure 1). For the next test‚ Dissolved Oxygen‚ we also created a bar graph to compare the values for the control and experimental groups. These results came in as statistically significant too‚ as the p-value was very low at .004. As for the overall mean values of the two groups‚ we found that the control group was oversaturated with oxygen at 102.78% while the experimental group was also slightly oversaturated at 101.55%.
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up a Planning Department particularly for planning for the entire Oxygen Z’s organisational direction where the Planning Department will appoint the top planners in the market for planning the sales and production of the application processor for the present and future. Departments as such will use up to date gadgets and methods to conduct studies and precipitate forecasts ‚ they might ignore the managers they exist to serve in Oxygen Z. Often‚ a great deal of extensive experience gained by managers
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DISSOLVED OXYGEN BY WINKLER TITRATION 1. Background Knowledge of the dissolved oxygen (O2) concentration in seawater is often necessary in environmental and marine science. It may be used by physical oceanographers to study water masses in the ocean. It provides the marine biologist with a means of measuring primary production - particularly in laboratory cultures. For the marine chemist‚ it provides a measure of the redox potential of the water column. The concentration of dissolved oxygen can be readily
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photosynthesis‚ plants absorb carbon dioxide gas from the air‚ with energy from the sun‚ water from the soil and chlorophyll to make carbohydrates for food. Figure 13.1 – The Reaction of A wire of magnesium with Oxygen (page 342) of the textbook also shows how a wire of magnesium metal and oxygen in the
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blood circulates around the body‚ collects oxygen‚ delivers the oxygen to the organs that require it and releases carbon dioxide. oxygen and carbon dioxide enter and exit the body in opposite directions across a respiratory surface area that supplies enough oxygen to allow the process to occur efficiently. The process begins when gases from the atmosphere‚ including oxygen‚ enter the body through either the nasal cavity‚ or the oral cavity. Afterwards‚ the oxygen enters the pharynx‚ a path that connects
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work properly. Overview The gas exchange system is the process in which oxygen enters the cells of many living animals. Some factors that affect how efficient a gas exchange system is are things such as the distance that the molecules have to go before the oxygen enters the cells of the animal. The gas exchange system has to be moist in order for the process of diffusion to take place. When an animal needs to replenish oxygen it has to absorb it across tiny cell membranes deep in their gas
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What is collagen? Collagen is a simple protein made up of amino-acids. Amino acids are built from carbon‚ oxygen and hydrogen. In fact collagen makes up approximately 30% of the protein within the body. As a structure Collagen is intensely strong and is a vital protein that is found all over the body: In tendons and ligaments. It plays an important role in the protection function of the skin in that it helps limit the absorption and spreading of pathogenic substances‚ environmental toxins‚ micro
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D1 – Analyse how two body systems interrelate to perform named functions The circulatory system and the respiratory system work closely together to ensure that organ tissues and systems receive enough oxygen. Oxygen is required for cellular functions such as cell respiration. This is so the body’s organs and cells can work at fully; it is done by releasing chemical energy with in stored foods. The air breathed in and held in the lungs is transferred to the blood. The blood is circulated by
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Experiment 1 Cyanobacteria Oxygen Production Through Photosynthesis Date Performed: September 2‚ 2014 I. Introduction a. Background Cyanobacteria or blue green algae are renowned for their tolerability and susceptibility even in wide range of environmental conditions‚ a characteristic of many primitive organisms. CNB are believed to be the agents of autotrophic origin of life thus they probably represent the survivors of the earliest photosynthetic plants‚ along with photosynthetic and chemosynthetic
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