Acid Rain Done By: Francis Lolas Teacher: Christine Due Date: 19/9/2012 Grade: 10 MYP 5 A There are many possible solutions to the problem that we are facing nowadays that is Acid Rain. Acid rain is formed from two main gases that are released in the atmosphere which are sulphur oxide and nitrogen oxide. I will talk later about the solutions for acid rain and the effect of this rain and what are the two forms of acid deposition. I have also watched some videos about acid
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IODINE TEST FOR STARCH The Iodine test is used to test for the presence of starch. Iodine solution — iodine dissolved in an aqueous solution of potassium iodide — reacts with the starch producing a purple black color. The colour can be detected visually with concentrations of iodine as low as 0.00002M at 20°C. However the intensity of the colour decreases with increasing temperature and with the presence of water-miscible‚ organic solvents such as ethanol. Also the test cannot be done at very low
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Origins of the Name The word‚ Aluminium originates from the ancient Latin word for alum‚ alumen‚ which is potassium aluminum sulfate‚ meaning “bitter salt”. We pronounce the element of aluminium’s name as follows‚ al-yuh-min-ee-uhm‚ which conforms to the IUPAC pronunciation of the word‚ with the regular ‘ium’ ending of majority of the elements of the periodic table. The History Aluminium was first discovered in 1825‚ by early discoverer‚ Hans Christian Oersted in Denmark. Before this time‚ alum
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J. of Advanced Engineering and Technology Vol. 2‚ No. 2 (2009) pp. 281-283 Synthesis of 2-Acetylcyclohexanone Using Pyrrolidine-enamine Eun-SunYoo Department of Oriental Medicine Industry‚ Honam University‚ Korea (Received : May. 20‚ 2009‚ Revised : Jun. 02‚ 2009‚ Accepted : Jun. 12‚ 2009) Abstract : 2-Acetylcyclohexanone was synthesized by acylation reaction of acidic anhydride using enamine as organiocatalyst instead of a strong base‚ NaOH‚ resulting in milder reaction conditions. The
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Part II: For the following questions‚ provide your response in short-answer format (2–3 detailed sentences each). Use this Phase’s activities and resources to assist you in answering. 7. What is pH? a. pH is a measurement of hydrogen ion concentration. It measures rather the solution is acid‚ base‚ or neutral. 8. What is a base? a. Accepts hydrogen ions from another substance that have a pH>7. It taste bitter and feel slippery. 9. What is an acid? a. Component with a positive or
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Animal Diversity The number of animal varieties familiar to us is vast as the animal world is diverse. Each distinct variety or type of animals is recognized by scientist as a species. Animals of most species are free-living forms but of others are parasitic in bodies of other animals or even plants. According to their habitats animals are divided into the following types Aquatic animals :- They live in water . Animals living in sea water are called marine & those live in river‚ponds‚streams
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#Of people with trait Free earlobes 20 100% Attached earlobes 0 0% Hair on knuckles 5 25% No hair on knuckles 15 75% Widow’s peak 5 25% Straight hair line 15 75% Curly hair 10 50% Straight
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TUTORIAL 1 BASIC MOLECULES OF CELLS I Student’s Guide: At university level‚ the tutor facilitates student learning without spoon-feeding. Therefore‚ you are expected to: • Read your textbook‚ attempt the questions before the tutorial • You may enter the class and sign your attendance after showing your tutor that all tutorial questions have been completed; even if you don’t know how to do‚ write something - you’re not advised to leave answers blank in the finals. • Write answers
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Structural Isomers • molecules with the same molecular formula but with different arrangements of atoms • differences in the shape of isomers lead to differences in their physical & chemical properties • For example‚ galactose‚ glucose and fructose have the same molecular formula (C₆H₁₂O₆) but different structures (figure 6 page 30) • glucose itself has 3 different structural isomers in dry state‚ glucose has a linear structure‚ but when dissolved in water‚ the molecules fold on itself
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ologyCOMPONENTS OF THE ECOSYSTEM. -Components of an ecosystem‚ Groups of interacting plants and animals from populations‚ and two or more populations in the same place at the same time form communities. The community forms the living‚ or biotic part of the ecosystem. Energy‚ Minerals‚ Nutrients and water from the non-living or abiotic components. 1. Inorganic substances (C‚N‚CO2‚H20 etc) incolved in material cycles. 2. Organic compounds (Proteins‚ Carbohydrates‚ lipids‚ humic substances etc.)
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