This part of the experiment yielded an exothermic reaction. The purpose was to calculate the specific heat capacity and molar mass of the zinc metal. The specific heat capacity was found to be 0.197 J/g °C with a percent error of -49.5%. The molar mass was found to be 127 g/mol with a percent error of 94.2%. Possible sources of error inherent to this segment of the experiment were the fact that when the temperature of the solution was being measured
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A market failure occurs when the allocation of good is not efficient. The externality is present if an economic activity (production or consumption) imposes costs on‚ or creates benefits for‚ third parties. If they impose costs on third parties they are considered negative externalities. Negative externality is a type of market failure. The government in London decided to impose tax on hauliers who use trucks that heavily polluted the environment. This is a negative externality since pollutions would
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Advantages of Outsourcing Outsourcing is the process of contracting business functions to someone else. If a business needs expertise or skills that they don’t have within their company‚ they often turn to outsourcing to solve their dilemma. Outsourcing can trace its roots to large manufacturing firms‚ which hired outside organizations to produced specialized components they needed for their products. For example‚ automakers‚ hire different companies to make air conditioning units‚ radio systems
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Commentary on: Pecan market is a-crackin’ In the last few years the economic growth of China has caused the demand (and supply) of all kinds of nuts‚ especially pecans‚ to rise and producers are facing a challenge meeting the soaring demand‚ says “The Globe and Mail” October 18th 2010. Demand and supply are the quantity of a good or service that consumers and producers are willing able to purchase and produce at a given price in a given time period. Equilibrium is a state of rest‚ self-perpetuating
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13; Astrophysics Assessment Statements |E.1.1 |Outline the general structure of the solar system | | |E.1.2 |Distinguish between a stellar cluster and a constellation | | |E.1.3 |Define a light year | | |E.1
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10.1.3 CROSSING OVER Outline the process of crossing over in : Meiosis 1: • Prophase I - homologous chromosomes are paired up tightly into tetrads‚ then crossing over‚ the exchange of genetic material between the DNA in these tetrads occurs‚ forming a chiasmata‚ an x-shaped structure. • Metaphase I - paired chromosomes line up along the equator of a cell‚ the metaphase plate as the spindle microtubulue apparatus pulls them. • Anaphase I - The spindle microtubules pull homologous chromosomes
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Discuss the use of technology in investigating one cognitive process-Alzheimer’s disease and memory loss Alzheimer’s disease is a degenerative brain disorder that results in memory loss‚ impaired thinking and personality change. No blood test‚ brain scan‚ physical exam can definitely diagnose Alzheimer’s disease. PET scan detect radioactively tagged glucose that are injected into a patient’s body before the imaging. Glucose enters through blood stream and brain. The most active brain areas
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The hypothesis was rejected in this experiment‚ based on the results. The results were much different than hypothesized before the experiment. It was hypothesized that the lower concentrations of CLR‚ Jar E and Jar D‚ would be healthier and more likely to reproduce than the higher concentrations of CLR‚ Jar B and C. However‚ as shown in the actual results‚ Jar E and D with the lower concentrations of CLR died quicker than Jar B and C. The CLR and water solutions acted as a fertilizer‚ so the greater
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Unfortunately‚ we did not have any data for week four due to the Astros parade‚ and during the fifth week of data collecting‚ two nightcrawlers went missing during the experiment in one of the containers‚ so the results for the Gain at 0.06% were inaccurate and the six week mass count as shown in figure one‚
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The effect of enzyme concentration‚ substrate concentration‚ pH‚ and temperature on the enzyme catalase. Introduction: Enzymes are biological catalysts; proteins and RNA. They are required for most biological reactions and they are highly specific. Each enzyme has an active site. The active site is the spot on the enzyme where a substrate fits in. Substrates binds with enzymes through the active site. Enzymes‚ being highly specific‚ only fit with one certain substrate. Enzymes and substrates
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