might feel less intimidated and more willing to discuss work with their peers. Whilst the assessment of group work can also play a major part in the learning process‚ it is often this aspect of group activities which most concerns many academics. What is important is that the assessment methods and criteria are made clear to students before they begin the activity. Academics have to decide whether they are prepared to give each student the same mark for the group outcome or whether they feel more
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Jim Heynens writer of What happen during the ice storm‚ shows a humans reaction during a challenging situation. The theme of this tale is kindness‚ a type of human nature ‚ in the story is showing a few boys saving the pheasants‚ instead of pounce on a pheasant or yell bang . The human nature can be represented by many forms‚ and in this story is by survival and limitless kindness. This story is an example of how a tough situation can influence a person’s decision making. For example when the
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for the organisms by catalyzing various biochemical reactions. Most of these chemical reactions would not take place in the conditions available if the enzymes were not a present. Therefore‚ we can say that being involved as catalysts is the main and most important role of an enzyme in any organism. Furthermore‚ many reactions that are thermodynamically favored do not occur quickly because there is not enough energy necessary to start the reaction (1). This energy is called the activation energy and
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temperature)‚ and 70°C. This investigation tested the hypothesis: The rate of osmosis will increase as the temperature increases 2x2x2cm cubes of potato were weighed and then placed into 100mL of 10% NaCl solutions for 10 minutes. After 10 minutes the cubes were again weighed to determine the amount of mass that they lost/gained and thus get an indication of the rate of osmosis. The results collected showed that the rate of osmosis was highest in the 70°C solution and lowest in the 20°C solution
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Abstract This experiment is to study the effect of temperature on the rate of reaction between potassium permanganate with oxalic acid. We used 2cm3 of 0.02M potassium permanganate and 4cm3 of 1M sulphuric acid into a test tube. In another test tube‚ we placed 2cm3 of oxalic acid. We placed the test tubes in a water bath at 40‚ 45‚ 50‚ 55 and 60oC respectively. When the solutions have attained these temperatures pour the oxalic acid into the acidified permanganate solution and recorded the time
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this experiment‚ I am going to see if temperature affects the reaction rate between marble chips and hydrochloric acid by timing the release of carbon dioxide in the reaction. I predict the higher the temperature‚ the faster the reaction rate. This is due to the kinetic theory. The more heat that is given to matter‚ the faster the particles move. This happens in the acid‚ so the faster the particles move‚ the faster the reaction rate due to more collisions between the marble chips and the acid
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was observed to be exothermic. As sodium chloride and ammonium chloride was observed to be endothermic‚ those two salt substrates was not used in the experiment as the goal of the experiment was to increase temperature‚ not decrease it. Additionally‚ health hazards of the products made by each substrate reacting with water was researched. The 2016 cost per gram of each substrate was given by the instructor. To start the experiment‚ 10g of sodium acetate‚ sodium carbonate‚ calcium chloride‚ and lithium
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It was the worst thing to happen in American history. It showed that if we were to be attacked again‚ we could only depend on each other and no other nations to help us. It made us united as one powerful nation who can stand up from the ruins of thousands of pounds of metal and fight so that we won’t have to be in ruins again. After that day our country became something no one had seen before‚ we became united as one. That day was so tragic and unforgettable we had become closer‚ more spiritual‚
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cells and removing waste. The pulse (heart rate) is the number of times a person’s heart beats per minute (bpm). The pulse is a rhythmical throbbing of the arteries as blood is propelled through them‚ typically felt in the wrists or neck. Your resting heart rate occurs when you become relaxed or comfortable. These are shown when sitting or lying down. The ability to return to a normal pulse after an activity is called recovery heart rate. Fast heart rate recovery from exercise indicates an improved
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Using a suitable diagram‚ predict what is likely to happen to efficiency hen a competitive industry is monopolised? The normal answer is likely to arrive at the conclusion that under monopoly the industry will produce a lower output at a higher price as compared to perfect competition. This will result in a loss of technical/productive and allocative efficiency. Good candidates might also comment on the loss of consumer welfare and sovereignty. The candidate who‚ in addition‚ comments on the possibility
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