Investigating the effects of acid rain in the growth of cress seedlings IntroductionAcid rain is rain or any other form of precipitation‚ which is unusually acidic. It has harmful effects on plants‚ animals and buildings. Acid rain is mostly caused by human emissions of sulphur and nitrogen compounds which react in the atmosphere to produce acids. Acid rain can slow the growth of vulnerable forests and cause leaves and needles to turn brown and fall off. In addition‚ it depletes minerals from the
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Acid: A chemical substance (typically‚ a corrosive or sour-tasting liquid) that neutralizes alkalis‚ dissolves some metals‚ and turns litmus red. Ionic Dissociation: Dissociation in chemistry and biochemistry is a general process in which ionic compounds (complexes‚ or salts) separate or split into smaller particles‚ ions‚ or radicals‚ usually in a reversible manner. Strength of Acids: The strength of an acid refers to its ability or tendency to lose a proton. There are very few strong acids. A
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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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Qualitative Research is a form of social inquiry that focuses on the way people interpret and make sense of their experience and world in which they live. In the words of Atkinson et al.(2001) it is an "Umbrella term"‚ and a number of different approaches exist within the wider framework of this type research. The main aim of most of the approaches is to explore and understand the social reality from the point of view of the individuals in the social context in which they live. The Qualitative methodology
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Qualitative Characteristics of Accounting Information Business owners can use accounting information to conduct a financial analysis of their companies’ operations. Accounting information often has quantitative and qualitative characteristics. Quantitative characteristics refer to the calculation of financial transactions. Qualitative characteristics include the business owner’s perceived importance of financial information. Business owners often require financial information
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Assignment Denise Brown Walden University Application 1 Assignment Qualitative method is one of three methods of conducting research. According to Creswell (2009). Creswell (2009) additionally shares collecting data to analyze and interpret behavior is significantly different from quantitative method due to purposeful sampling. In this process open-ended data is observed unlike the traditional process in quantitative method. Qualitative method is more of hands on inquiry going directly to the scene of
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QUALITATIVE VERSUS QUANTITATIVE RESEARCH Qualitative and quantitative methods of user research play important roles in product development. Data from quantitative research—such as market size‚ demographics‚ and user preferences—provides important information for business decisions. Qualitative research provides valuable data for use in the design of a product—including data about user needs‚ behavior patterns‚ and use cases. Each of these approaches has strengths and weaknesses‚ and each can benefit
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Lewis Acids and BasesLewis acids and bases play an important role in chemical reactions because‚ except oxidation-reduction reactions‚ almost every reaction could be categorized as an acid-base reaction. Bases in water solutions show certain specific characteristics: bitter taste‚ feel slippery‚ and turn litmus paper blue. Acids in water solutions show these most common characteristics: sour taste‚ react with metals‚ and turn litmus paper red. The understanding of chemical reactions‚ such as acid
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The unknown carboxylic acid’s melting point was 108°C according to the Mel-Temp machine. The melting point is the temperature at which a solid precipitate changes into its liquid form upon heating. The melting point of benzoic acid‚ the aromatic carboxylic acid was 122°C. Thus‚ the product contained impurities which caused the solid to melt at a lower temperature than the actual temperature. Pure solids typically melt at higher temperatures while impure solids melt at lower temperatures. This is
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Distinguished ladies and gentlemen. Acid rain is becoming a widespread problem around the world. The amount of acid in rain has dramatically increased in the past decade in certain areas like America and Europe by 70%. How is it caused? It is formed by the chemicals in the process of burning fossil fuels mixing with the moisture in the Earth’s atmosphere. Acid rain come in two forms‚ wet and dry. Dry deposition‚ a more accurate term for acid rain‚ can appear to be snow‚ hail or other dry particles
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