GLOBAL HEAVY CHEMICALS LIMITED Offer Price : Tk. 20/= with premium Tk. 10/= No. of Shares : 1.20 Crore Total Amount : 24.00 Crore Subscription : 09-13 November Bangladesh Chemical Industry at a Glance: Bangladesh Chemical Industries Corporation (BCIC)‚ a state owned enterprise‚ is the pioneer in chemical industry in Bangladesh with concentration in producing fertilizer‚ acids‚ alkali‚ ammonia‚ chlorine‚ paper‚ pulp‚ rayon‚ bleaching powder etc. However‚ private
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Tavaski Gordon December 17‚ 2013 HS 251 Unit 14 Paper Bio-Chemical Weapons The use of biological and chemical weapons has been practiced for many centuries. It started from the late 400s BC up to the twenty first century‚ and is still currently being practiced today. Ever since these weapons were introduced‚ they have been used by individuals‚ groups‚ or countries to advance certain agendas. These agendas are often for military purposes (war) to gain a tactical advantage over an opposition;
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II. LEARNING OBJECTIVES - To perform different types of chemical reactions including acid-base‚ precipitation‚ gas forming‚ complex compound forming and oxidation-reduction reactions. - To identify some of the products in these reactions and describe the chemical changes. - To write and balance the chemical equations for the reactions observed. III. EQUIPMENT AND REAGENTS 1. EQUIPMENTThirty test tubes One test tube rack Two test tube holders Two spatulas Three 250 mL beakers One stirring rodOne
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Total continuity equation is the principle of the conservation of mass when applied to a dynamic system. The unit of this equation is mass per time. In overall balance‚ only one TCE can be written. CCE is based on component balance. Unlike mass‚ chemical components are not conserved. If reactions occur on a system‚ the number of moles of an individual component will increase if it is a product and will decrease if it is a reactant. The unit of CCE is moles of component per unit time. While EE‚ the
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when solids are mixed with other solids. 2. Identify what mixture is. II Subject Matter Topic : MIXTURES A. Science Concept: Mixture contains two or more substances put together. Each substance in a mixture does not change its physical properties. Solids when mixed with other solids‚ never forms a new substance. B. References: Science and Health 4 pp. 151-152 Exploring and Protecting Our World 4 pp. 178-179 Refine Learning Competences 2.1 C. Processes: Observing‚ Describing
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Chemical Reactions and their Classifications 26 October 2012 Abstract: Ordinary laboratory ware was used to determine how many of what type of chemical reactions occurred. This yielded three decomposition reactions‚ four substitution reactions‚ and three metathesis reactions. Introduction There are many different types of chemical reactions in the study of chemistry; A composition reaction (also known as synthesis) is defined as the reaction that occurs when two single compounds combine in
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AS TRANSITION COURSE SUMMER 2012 PART 1: MEASURING AMOUNT OF SUBSTANCE MASS VOLUME MOLAR MASS AVOGADRO [pic] CONCENTRATION ATOM ION MOLECULE COURSE OUTLINE OCR Chemistry A Unit 1 – Autumn Term 2012 • Atoms and Electron Structure • Moles‚ Equations and Acids • Structure and Bonding • Redox‚ Group 2 and Group 7 Unit 1 Exam – January 2013 – 1 hour – 90 UMS – 30% of total Unit 2 – Spring Term 2013 • Basic Concepts
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common physical property of the substance being red crystal grains. After heating the substance the sample turned into a light blue powder which was significant in identifying the compound. The average % H₂O Driven off was __% ‚which closer to that of the __% of CoCl₂•6H₂O‚ rather than the __% of CoSO₄•6H₂O. The percent error in the calculations was ______% . Through the trials involving Unknown B‚ it was confidently determined to be Al(SO4)3 •16H2O. The substance appeared white and powder-like before
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of 10 to 16. It helps students to learn about producing electrical energy using chemical energy. Since the same method is used to get energy from many fruits and chemicals‚ this project has many names. Following are some of the other names or titles for this project: |Fruit power or fruit battery | | |Convert Chemical energy to electrical energy |
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the color and odor of the substance. The substance was a clumpy‚ white‚ crystal-like substance and it smells like new plastic. When we tested the solubility in water it resulted insoluble and in ethanol it resulted soluble. This substance could not be tested for electrical conductivity because the water was insoluble. We then tested for the PH value and it was neutral. The flame test was negative. There was no pigment in the flame. For our second unknown‚ the substance color was powdery-white‚ glittery
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