Investigative question: how are esters formed ? Esters are formed by the reaction of an alcohol and a carboxylic acid‚ usually in the presence of sulphuric acid to catalyse the process‚ or by the reaction of an acyl chloride with a carboxylic acid (this requires no catalyst and is irreversible without additional reactants) are the most common ways used. Others include reactions of certain molecules such as structural rearrangement. Apparatus: Plastic dropping pipettes‚ Beaker (100 cm3 or 250
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phenomena.” In order for a theory to be considered scientific‚ it needs to satisfy certain parameters‚ which distinguishes it from the other two forms. Firstly‚ a scientific theory will explain how nature works for example Newton’s Theory of Universal Gravitation‚ or Kinetic Theory of Gases‚ and it will do so with significant evidence – unlike in the other forms‚ a scientific theory is always well tested by numerous experiments. This leads to the next point - scientific
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For the next 15 years‚ Muhammad made his living as a merchant. Although he enjoyed success in business‚ he also cared about spiritual matter. He often spent time at prayer and meditation in the mountains around Makkah. He was concerned about the effects of wealth and the worship of idols on his city. In about 610 C.E‚ Muhammad went to meditate in a cave in the mountains. There‚ according to Islamic teaching‚ Muhammad received the call to be a prophet‚ or messenger of Allah. Allah is the Arabic
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view that argues how all human population flowed between different regions and mixed together which contributed to the development of the modern human. What makes these theories the most highly debateable in paleoanthropology is that 30‚000 years ago‚ the taxonomic diversity previously seen amongst homo sapiens‚ homo erectus and homo Neanderthals had vanished and humans everywhere had evolved into the anatomically and behaviourally modern form; there is much deliberation as to how this occurred which
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and understanding of how science works. Details are then given of the substantive contexts in which these skills‚ knowledge and understanding should be set. It is expected that‚ where appropriate‚ teachers will adopt a practical approach‚ enabling candidates to develop skills in addition to procedural knowledge and understanding. Note that objective test Chemistry 1a examines Section 11.1 . 11.3 and objective test Chemistry 1b examines Sections 11.4 . 11.6. 11.1 How do rocks provide building materials
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“How the Earth was Formed” video notes: Theory: -sun was surrounded by a cloud of dust and gas -as cloud cooled little grains of minerals started forming -grains of minerals started bumping into each other (Problem was nobody could explain how these microscopic minerals formed a planet) Then in 2003 astronaut Don Pettit performed an experiment onboard the international space station. He put some salt in a plastic bag and found that almost immediately the grains started gathering together into little
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There is no difference when it comes to rock and roll. Since the late 1950s when women first began to make their entry into rock and roll until now‚ women have been making great strides in the industry. However‚ as James Brown and Betty Jean Newsome state in their 1966 single‚ “this is a man’s world”. Women have constantly been cheated out of credit and money. They have also not been taken seriously as musicians. They have been oversexualised‚ as well‚ in rock and roll. As Runaways’ Joan Jett says
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for political parties‚ but when James Madison wrote the Constitution no one even thought of even having political parties. Shortly after the Constitution was written‚ however‚ political parties formed. How did these political parties get formed? Well‚ it started how many other political parties are formed today‚ a disagreement. Leaders of the American Revolution hated the idea of political parties.
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[pic]What Is Character? How Is It Formed? Character is who we really are. It’s what we do when no one is looking. It’ s the accumulation of thoughts‚ values‚ words and actions. These become the habits that comprise our character. That character determines our destiny. A person of character thinks right and does right according to core universal values that define the qualities of a good person: trustworthiness‚ respect‚ responsibility‚ fairness‚ caring and citizenship. The CHARACTER
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How Iceland was formed Iceland‚ situated on top of a hotspot experiences severe volcanic activity one of the most well known eruptions was in 2010 when Eyjafjallajokull erupted seriously disrupting European air traffic. Iceland is situated is situated in the mid Atlantic ridge a seam in the Earth’s surface under the North Atlantic Ocean where the Eurasian and North American plates slide apart. This island has more than 200 volcanoes which is thought to be what created this island. This picture
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