An investigation in to the rate of reaction Plan: I am going to investigate the rate of reaction. The reaction I will be using is: Calcium Carbonate + Hydrochloric acid ---- Calcium Chloride + water + carbon dioxide. CaCO3 + 2HCl ---- CaCl +H2O + CO2 Measurements and Variables: The variables I have chosen to change is strength of the hydrochloric acid which will be 1 mole‚ 0.7 mole‚ 0.5 mole‚ 0.3 mole and 0.1 mole some variable I will not be using are temperature‚ mass‚ density. The measurements
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undergoing a permanent change themselves. These proteins are able to do this by lowering the activation energy of a reaction. To add on‚ enzymes require specific conditions under which they can work best. Reactions occur at faster rates when the temperature is higher. However‚ the rate of an enzyme-catalyzed reaction is reduced or can be stopped if the temperature becomes too high. This is due to the fact that enzymes become denatured at high temperatures. Denaturation occurs when the shape of an enzyme is
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and starch were simultaneously mixed. The reactions were then introduced to I2-KI‚ which stopped the reactions‚ at two minute intervals. Each of these trials was repeated three times to ensure proper accuracy. After concluding the reactions they were placed into a spectrophotometer (A580) for analysis. Graphing the values of the absorbance to time for each pH it was found that the rate of reactions in the neutral pH solutions were much higher than that of the acidic solution. We concluded that this
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assessment of their rewards by using two comparisons: The comparison level (CL) – where rewards are compared to costs to judge profits. This may be based on past experiences and relationships as well as what we expect to get from a relationship. The comparison level for alternative relationships (CLalt) – Where rewards and costs are compared against perceived alternative relationships and how they compare. A relationship is maintained if profit is perceived in both these two comparisons. Thibaut & Kelley
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Describe how marketing techniques are used to products in two organisations Kellogg’s and Tesco Growth strategies To grow as an organisation Kellogg’s and Tesco will use different strategies. These include diversification where the organisation effectively enters a new market. Tesco have done this where they have gone from just selling products in their shops to selling petrol‚ insurance and having their own mobile network. Kellogg’s have also done this as they have gone from selling cereals
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Describe and evaluate two approaches to the treatment of self-defeating behaviour. “Pain is inevitable… Suffering is optional.” Buddhist Scripture Introduction Self-defeating behaviour (maladaptive behaviour) is the idea that people knowingly respond to stimuli that will cause them to fail or bring them trouble. It is defined as “any deliberate or intentional behaviour that has clear‚ definitely or probably negative effects on the self or on the self’s projects” 1. Psychologists have examined
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city. Formulate this problem as a max flow problem by identifying a source‚ a sink and transshipment nodes‚ and then drawing the complete network that shows the capacity of each arc. 2. The Quick Chip gravel company has received a contract to supply two new construction projects in the towns of Brock and Wurst. A total of 60 truckloads are needed at Brock in the next month and 90 at Wurst. Quick Chip has idle gravel pits in the towns of Nova‚ Scova‚ and Tova‚ each with a monthly production capacity
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The Technology-Diffusion Model illustrates how a social institution reacts to a new technology as follows: • “Innovative technology is created • Institution adopts technology to carry out existing functions more efficiently • Institution accommodates internally to take better advantage of new efficiencies • Institution develops new functions and activities made possible by capabilities of the technology • Institution may become obsolete‚ be replaced‚ or be radically transformed • Other institutions
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No More Pesky Learning Rates Tom Schaul Sixin Zhang Yann LeCun Courant Institute of Mathematical Sciences New York University 715 Broadway‚ New York‚ NY 10003‚ USA schaul@cims.nyu.edu zsx@cims.nyu.edu yann@cims.nyu.edu arXiv:1206.1106v2 [stat.ML] 18 Feb 2013 Abstract The performance of stochastic gradient descent (SGD) depends critically on how learning rates are tuned and decreased over time. We propose a method to automatically adjust multiple learning rates so as to minimize the expected
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Describe two or more psychological explanations of schizophrenia 8+16 marks A01 A02 Sociocultural AO2 Cognitive Introducing Biology The cognitive explanation acknowledges the role of biological factors in schizophrenia‚ suggesting that the basis of the condition is abnormal brain activity producing visual and auditory hallucinations. Further features of the disorder emerge as people try to make sense of the hallucinations. When schizophrenics first experience voices and other worrying sensory
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