History Kohinoor Chemical Co. (Bangladesh) Ltd. (KCCL) was founded in 1956 and became pioneer in manufacturing high quality beauty and personal care products in this subcontinent. Introducing automatic machinery and constant inflow of state-of-the-art raw materials from the world’s best possible sources‚ KCCL has built high standard in manufacturing quality cosmetics‚ toiletries‚ soap‚ perfume and glycerin etc. It is a Public Limited Company‚ listed with both the bourses of Bangladesh‚ the Dhaka
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Observations of Chemical Changes Observations from Procedures Well#/ Question Chemicals Reaction A NaHCO3 and HCl-CO2 Bubbles B HCl and BTB Turns Orange C NH3 and BTB Still blue- no change D HCl and blue dye Turns green E Blue dye and NaOCl Stays blue – no change F NaOCl and KI Turns pale orange/yellow G KI and Pb(NO3)2 Milky yellow solid H NaOH and phenolphthalein Turns bright pink I HCl and phenolphthalein Bubbles- cloudy J NaOH and AgNO3 Solid formed/ turned brown K AgNO3 and NH3 No change
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Blood diamonds have greatly affected the native populations in Africa. For example during the war in Sierra Leone‚ which started in 1991 and ended in 1999‚ the RUF took advantage of the native people because they could not defend themselves. This war that took place in these years claimed over 75‚000 lives and caused many native people to become refugees. They would take young girls and women away from their families and force them into sexual slavery. Many of these girls did not have a choice because
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the order process it is important to have the correct information provided in a timely fashion to all divisions. For integration to be successful information must be available throughout the entire supply chain. The main problem is with Woodson Chemical Company is the lack of management and communication across all divisions within the organization creating bottlenecks throughout the operations. There are several sub problems seen throughout the organization at different levels of management and
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Data Tables: Part 1: Chemicals Well No. Observations of the Reaction A. NaHCO3 + HCl A1 Bubbles immediately formed and started popping (not rapidly). This could be seen more easily with the black paper underneath the well plate B. HCl + BTB C1 Once I added the Bromothymol Blue indicator‚ it turned an orange-like color C. NH3 + BTB E1 The reaction turned dark blue. When Bromothymol Blue reacts with an acid‚ it turned orange‚ and when it reacts with a base‚ the end result is blue. D. HCl
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Observations of Chemical Changes Experiment 1 Chemistry 111 September 3‚2014 Ashley Mattox Abstract: The purposes of this lab is to observe the reactions of some common chemicals contained in consumer products and observe the macroscopic changes these chemicals undergo. Purpose: The purpose of the lab is to be able to interpret underlying macroscopic changes in terms of the behavior of atoms and molecules and also to learn how to separate mixtures into their component
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Introduction What is chemical change? Chemical change is the alteration of a substance into one or more different substances with different properties (also called chemical reaction). The four different types of chemial reations are synthesis‚ decomposition‚ single displacement‚ and double displacement. Synthesis is when atoms and/or molecules combine to form larger molecules. Decomposition is when a large molecules are split into elements or smaller molecules. Single Displacement has an element
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Allison Lankford January 20‚ 2012 January 22‚ 2014 Title: Observation of Chemical Changes Purpose: To observe properties of chemical reactions and to associate chemical properties with household products. Procedure: I used different kinds of chemicals to see the chemical changes that occur when they are mixed together. Data Tables and Observations: CHEMICALS REACTIONS NaHCO3 Bubbles are formed HCl & BTB Turns an orange color NH3 & BTB Turns a dark blue color HCl & blue dye
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Chapter 6: Chemical Bonds Section 6.1: Ionic Bonding Chemical bond: the force that holds atoms of elements and ions together to become a stable‚ new substance called a compound. -the number of valence electrons determines if an atom will form a chemical bond. -metals tend to give up electrons to other atoms. -nonmetals tend to take electrons from other atoms. -noble gases will not form a chemical bond because these atoms already have a full outer shell of energy. Ionization: the
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Computer The Determination of a Chemical Formula 1 Second‚ you will conduct a chemical reaction with the dried sample‚ which will produce elemental copper. By measuring the mass of copper that forms‚ you will have the necessary information to determine the moles of copper and chlorine in your sample‚ and you will be able to establish the proper chemical formula. OBJECTIVES • • • In this experiment‚ you will Ev al Determine the water of hydration in a copper chloride hydrate
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