In the first reaction‚ magnesium was burned to produce magnesium oxide. The reaction produced a bright light‚ which is evidence of a chemical change. The second reaction occurred as a result of solid magnesium reacting with hydrochloric acid. The reaction produced heat and bubbles‚ both indications of a chemical change. A wood splint was used to determine that the gas produced was hydrogen gas‚ hence the other product is magnesium dichloride. In the third reaction‚ ammonium carbonate was heated to
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Chemistry 11 Final Examination Review - Answers Part A - True or False. Indicate whether each of the following statements is true or false. Correct the false statements. F 1. The mass of an electron is equal to the mass of a proton. The mass of an electron is less than the mass of a proton. T 2. The mass of a proton is approximately equal to the mass of a neutron. T 3. The atomic number represents the number of protons in a nucleus. T 4. The proton has a mass of approximately
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Experiment 1: Synthesis of Copper Compounds Introduction This experiment involves the synthesis of compounds originating from pure solid copper. By applying solubility rules and the reactive properties of substances‚ many compounds which would otherwise be costly to extract from nature are able to be synthesized in the laboratory. Laboratory synthesized may sometimes be more economical than natural extraction‚ however it poses its own problems with the amount of substance that is actually yielded
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The hypothesis If a chemical reaction occurs‚ then there will be indicators of a chemical change‚ was supported throughout this experiment. Throughout this experiment there were several reactions that took place‚ and an indicator of such chemical reactions could be seen throughout each one. The first piece of identifiable evidence was present in the first step‚ which was when copper (II) nitrate and sodium hydroxide were combined. When stirred‚ a blue precipitate formed at the bottom of the test
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Copper Kettle Catering Case 1. The operations of Copper Kettle Catering’s delivery-only category is conductive to the application of lean concepts and practices because the Williams’ can efficiently manage the deliver-only process by minimizing excess inventory‚ unnecessary activities‚ movement and material handling. These factors will help to enhance service quality‚ flexibility‚ reliability and improve customer satisfaction. If Copper Kettle Catering has the resources to purchase automated
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the attack. However‚ this time‚ instead of being struck by a bomb‚ they were struck by a chemical warfare agent (CWA) known as sulfur mustard‚ which destroyed their home‚ murdered their newborn child‚ and resulted in weeks of intense medical care. The use of chemical weapons during World War One revolutionized chemical warfare. Since WW1‚ chemical weapons have grown in popularity. The experience with chemical weapons (CW) in WW1‚ the Northern Yemeni War‚ and Syria demonstrates why the production and
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natural‚ and great for us‚ right? As it turns out‚ this is not necessarily the case. In the past few years‚ I used agave syrup or nectar in several recipes before I heard some negative things about it. I have looked at where agave comes from‚ the chemical composition‚ how it is metabolized‚ calorie content and what it may be used for. Only now do I have a full grasp of the process it goes through to be used as a sweetener and how that may affect us. Agave syrup comes from the agave plant‚ which
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A solution to case study Liquid Chemical Company A Proposal Presented to Dr. Madhumita Chakraborty Indian Institute of Management‚ Lucknow On November 25th‚ 2008. In Partial Fulfillment of the Requirement for the Course Management Accounting -II by Name Roll Number Rajesh Kumar Snehi 24089 Sai Harish Chava 24090 Samarendra Singh 24092 INTRODUCTION The Liquid Chemicals Company (LCC) produces and sells a wide variety of high grade products throughout
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IRON ORE DRY BULK TRADE Demand for dry bulk commodities like iron ore is driven by industrial production and growth requirements. An increase in steel production stimulates the growth of iron ore shipments and also the trade. From early 2000s‚ the iron ore market began a transformation following China’s increasing demand for steel. World production of iron ore exceeded 1 billion tonnes in 2002. International iron ore trade reached record levels at 512 million tonnes (Mt). Price negotiations
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changes are used to describe matter. A property is a trait of matter‚ when that sample of matter is in a fixed state. There are two different types of properties: physical properties and chemical properties. A change is something that alters the properties of a substance. There are two types of changes: chemical changes and physical changes. A physical property is a property that can be observed without changing the makeup (or composition) of a substance. Some examples of a physical properties
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