and calcium cations that are present in both water and plant cells. 2.)For farmers‚ soil acidification on their land can be a major problem. What is soil acidification‚ how is it caused and how is it prevented? Soil acidification is the build up of hydrogen ions(H+)‚ reducing the pH‚ therefore the soil becomes too acidic. The donor can be an acid‚ such as nitric acid and sulfuric acid.The addition of the acids can be due to acid rain and pollution. Many nitrogen compounds‚ which are added as
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Small wonder (Topics for today) When he was nearly three years old‚ Nguyen Ngoc Truong Son would watch his mother and father playing chess in the family’s ramshackle home in the Mekong Delta‚ and‚ like any toddler‚ pester them to let him play‚ too. Eventually they relented‚ assuming the pieces would soon wind up strewn around the kitchen‚ a plastic bishop stuffed into a teapot‚ the white king face down in a bowl of phó. To his parents’ astonishment‚ Son did not treat the chess set as a plaything
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Stereochemistry of Butenedioic Acid Objective: To study the interconversion of two geometric isomers‚ maleic acid (cis isomer) to fumaric acid (trans isomers)‚ the differences in physical properties between this pair of cis-trans isomers and determine the stereochemistry of addition of bromine to butenedioic acid. Chemicals and Apparatus: 2 grams of maleic acid‚ 10 cm3 of concentrated hydrochloric acid‚ 10 cm3 of bromine water[1]‚ one 50 cm3 beaker‚ one 100 cm3 beaker‚ one 250 cm3
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Small Island is structured around four competing narratives each claiming historical truth and experience through shifts in setting and time. Levy’s historical novel is told through a series of extended analepsis that move back and forth between 1924 and 1948 as well as across national borders and cultures. Written more than fifty years after the first Windrush arrival‚ it creates a common narrative of nation and identity in order to understand the experiences of Black people in Post-Colonial Britain
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fermented from sugar. The fermentation of ethanol results in the production of acetic acid (CH3COOH). The typical pH of vinegar ranges anywhere from 2 to 3.5‚ although shop-bought vinegar usually measures 2.4 www.wisegeek.com/what-is-vinegar.htm fig 1 In this study we will determine the amount of acid in a vinegar sample by using titration‚ a common technique in chemistry a typical shop brought vinegar has an acid percentage of 5% see fig 1. A titration is a technique where a solution of known
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Small World “The world is getting smaller..." Yeah! The world is surely getting smaller and smaller. The total land area of the world is about 148‚300‚000 square kilometers‚ which still can be considered large enough for the current world’s population (about 6 billion). However‚ due to the rapid population growth (special thanks to China and India and the United States)‚ it is no wonder that it is running out of space. By the end of 2050‚ it is estimated that the world population will reach
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which he called cells’ this in itself unbeknownst to him‚ was the discovery of the fundamental unit of all living things. In 1838 a botanist called Schleiden derived the theory The basic unit of structure and function of all living organisms is the cell.’ Over 150 years later this can be regarded as one of the most familiar and important facts within the biological fields. Drawing of cork cells published by Robert Hooke 1665 The Cell itself and use
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Evolution of Sickle Cell Sickle Cell was discovered in the United states although it originated in Africa . The sickle cell disease (SCD) describes traits of an inherited red blood cell disorder‚ having SCD means you have abnormal hemoglobin‚ called hemoglobin S or sickle hemoglobin‚ in your red blood cells. What is hemoglobin u might ask?! Well Hemoglobin is a protein in red blood cells that is suppose to carry oxygen throughout the body. But when a sickle cell trait is “Inherited” it could
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Title: Introduction to cell‚ tissues and organ Objectives: 1. To study the different type‚ function‚ structure and histology of cell‚ tissue‚ and organs in human body. 2. To learn how to identify different cell and tissue based on their structure and shape. 3. To learn how to use the microscope properly to observe the slide of different cell and tissue. Introduction: Cell is the basic structural and functional units of an organism that are composed of chemicals. Cell is the smallest living unit
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Microsoft Small Basic An introduction to Programming Chapter 1 An Introduction Small Basic and Programming Computer Programming is defined as the process of creating computer software using programming languages. Just like we speak and understand English or Spanish or French‚ computers can understand programs written in certain languages. These are called programming languages. In the beginning there were just a few programming languages and they were really easy to learn and comprehend
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