In this investigation I will be burning alcohol ’s to heat up a can of water. I will be burning four alcohol ’s‚ methanol‚ ethanol‚ propanol and butanol. The aim is to find out how much energy is produced when burning these alcohols. Alcohol ’s react with oxygen in the air to form water and carbon dioxide. The reaction that is involved in burning alcohols is exothermic because heat is given out. From this reason the reactant energy is higher than that of the product. The energy is given out when
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How does water temperature affect the amount of dissolved oxygen? Ⅰ. Introduction Dissolved oxygen is just one of the many ways to measure water quality. It means the volume of oxygen that is contained in water. The amount of dissolved oxygen in water usually determines the quantity of organisms living in that water. Dissolved oxygen levels vary by how much oxygen the water can hold‚ how much oxygen is produced by photosynthesis‚ and how much oxygen is consumed by respiration. If water is too warm
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Discuss the Reliability of One Cognitive Process Memory is an example of a cognitive process‚ in other words it is a process by which knowledge is gained. This essay will attempt to explain the internal processes which are involved in memory and try to determine whether or not our memories as mental process of knowing‚ reasoning and judging can be considered reliable sources of information. First of all‚ memory is defined as the process of retaining and recalling past events or experiences.
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More than Basketball At first glance‚ basketball may seem like an easy concept to comprehend. It’s pretty basic; two teams compete against each other to shoot a ball in a goal more than one another‚ scoring more points‚ thus winning the game. Simple enough‚ right? Well‚ basketball goes a little deeper than that. It is quite a bit more than what meets the eye and can even get a little complicated at times. However‚ sticking to the basics is what will be done in this essay for getting in depth would
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Are More Jobs or More Police the solution to ending crimes? A Paper By Dominique J. Lacey Submitted In Partial Fulfillment of the Requirements for History 2112 Submitted To: Dr. John L. Rhodes‚ Sr. FVSU March 9‚ 2011 I have and honest belief that more jobs throughout America could possibly be the solution to ending most crimes around the country. Truth is that many U.S. citizens‚ who commit burglaries or break- ins‚ only do it because they are in need of money. If
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How are farmers growing more crops with less water than before? Today farmers are growing more crops with less water with the use of 3 types of irrigation systems drip irrigation‚ hydroponics‚ and center pivots. All three of these irrigation systems and with the help of some modern technology is allowing farmers to grow bigger and better crops with the use of less water and at a lower cost than before. The way a drip irrigation system works is it uses a leader hose connected to an
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audience with the use of fairly complex and persuasive language which is backed up with scientific evidence. Manne argues that climate change is occurring and has been proven by scientists‚ clearly stating the fact of who are laypeople to have an opinion on what is actually been proven by qualified experts within the field. Manne clearly quotes ‘there is a consensual view among qualified scientists about the cause of climate change” (2011‚ p. 14)‚ toxic greenhouse gases discharged by human activity
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Less Than Lethal Weapons For many years law enforcement has faced controversy about officer involved shootings. The use of non-lethal force has alleviated a lot of these occurrences. Law enforcement now has many options other than firing there guns. Some developments in the less than lethal weapons include the taser which is a stun gun that incapacitates a human target by generating a series of powerful electrical output pulses across first and second space apart output terminals in response to
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“Techno Tyranny” Bob Herbert explains in his article “Tweet Less‚ Kiss More” (published July 16th‚ 2010) how technology has grown so much throughout the years and how we have made more time for our “gadgets” than for people close to us. Instead of being with our families and friends we send them a quick email or text message when we should be cherishing moments together. We are so warped in our own lives and blinded by technology that we are missing out on the real world and wasting precious time
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number of moles and grams of urea and the amount of urea used originally used in the experiment‚ so the ammonium chloride will be primarily compared to the corrected amount of urea to make sure that the amount of solvent is equal. Graph 1 and 5 and Data Table 2 show that the mass of solutes were overall very similar: 8.735 grams of ammonium chloride and 8.99 grams of urea. Overall‚ this experiment proved that the freezing point depression is a colligative property that depends on the number of moles of
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