Abstract. An innovative and novel technology method of processing called Turbo-Mixing Reactive Precipitation (TMRP) design proposed as an alternative to this current processing or conventional productions of finer precipitation calcium carbonate (nano-PCC) in turbo-mixing conditions. In this paper‚ the effect of the stirring rate onto morphology‚ particle sizes and reaction time of the precipitated CaCO3 particles was discussed. CaCO3 nano particles with an average particle size of approximately
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rates of reaction of Alkali metals and Alkaline Earth meatals are compared in this lab. The pH of each of the resulting metal solutions are tested and the products of the reaction between calcium and water is discovered. The tested elements are sodium‚ lithium‚ potassium and calcium and each of them were placed in a beaker filled with water. The resulting solutions pH levels were tested with litmus paper. There were more steps for caclium because it is the only Alkaline Earth metal. For calcium‚ the
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area for a long history. It is the expressive of the character of people who possess it. So different culture developed its own identities. Richard Lewis qualified to plot the world’s cultures into three group: Linear-actives‚ Multi-actives and Reactives. He thinks the categorization is widely applicable and does not change over time. According to his article‚ I consider that his theory is an admirable summary of world’s culture which fits to ordinary situations. However‚ it’s unavoidable to be not
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bought a doll named Bianca to fill that nurturing role of a mother and his family and friends began to worry about him. Lars detachment from his family and friends all those years led to him having schizoid personality disorder and reactive attachment disorder. Reactive attachment disorder is when an infant has a lack of attachment to a caregiver at a young age‚ for Lars it was his parents. Because of this he would spend a lot of time alone and he never really wanted to talk to anyone or socialize
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resources (HR) to its firm has increased. The management of human resources went from being operational to strategic‚ which are the two levels of HR‚ and from reactive to proactive. The HR field may organize its thinking about the past‚ present‚ and future around the framework that results from the combination of both proactive and reactive HR. Operational HR activities generally refer to the routing‚ day-to-day delivery of HR basics. The strategic level of HR activity is more difficult to explain
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......................................................................... 7 2.2 Why cotton fibers & reactive dyes been used…...............................................7 2.3 Why time is necessary for dyeing cotton fabric with reactive dye....................7 2.4 Effect of time for dyeing cotton fabric with reactive dye………………..……7 2.5 What is organic cotton and how is it grown……………………………….......8 2.6 Why does the industry want to use organic cotton……………….……....……8
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"Kingly Gases" What is chemistry? According to dictionary.com‚ the definition of chemistry- is the science that deals with the composition and properties of substances and various elementary forms of matter. Chemistry is everywhere. For example: in a kitchen‚ it is in everybody’s chemically treated water‚ or fruits grown with fertilizers and pesticides‚ or polymer material in the marble counter tops. Again‚ Chemistry is everywhere. If a person wanted to go deeper into chemistry‚ they probably would
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Chemistry - Module 2 - Metal 1. Metals have been extracted and used for many thousands of years * Outline and examine some uses of different metals through history‚ including contemporary uses‚ as uncombined metals or as alloys. Contemporary Uses of common metals Metal | Uses | Iron and Steel (an alloy with <2% carbon)Good tensile strength‚ cheap‚ rusts (corrodes) | - Railways‚ bridges‚ buildings- motor cars bodies‚ ships and trains- Engine blocks‚ fire hydrants‚ drainage
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Metals and Non-metals Elements are divided mainly into two groups on the basis of physical and chemical properties – Metal and Non-metal. Metals: Part - I Physical Properties of Metals:- Hardness:- Most of the metals are hard‚ except alkali metals‚ such as sodium‚ potassium‚ lithium‚ etc. Sodium‚ potassium‚ lithium etc. are very soft metals‚ these can be cut using knife. Strength:- Most of the metals are strong and have high tensile strength. Because of this big structures are made using metals
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Maggie Mitchell IB Chemistry Prd. 5 THE HALOGENS LAB Date: 9/11/13 Purpose: The purpose of this experiment was to observe and record the halogens’ (NaF‚ NaCl‚ NaBr‚ and KI) reactions with the chemicals Ca(NO3)2‚ AgNO3‚ and NH4OH and use these observations to identify an unknown halogen. Data: (see next page) TABLE 1: REACTIONS OF HALOGENS WITH CA(NO3)2‚ AGNO3‚ AND NH4OH REACTION NAF NACL NABR KI REACTION W/ CA(NO3)2 solution turns cloudy and precipitate forms clear precipitate
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