Population and its affects Population is becoming very dangerous for us because every day population was increasing. The demand of people is also increasing for crops and they also want cloths to wear. The most populated country in the world is China and second most populated country is India. Day by day for completing the demand of people government are cutting the trees and making industries and house for people because of this the percentage of oxygen is going down and the percentage of carbon
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Oxidation Number When elements combine to produce a compound‚ each element is assigned an “apparent” charge. This apparent charge‚ the charge an atom would have if both electrons in each bond were assigned to the more electronegative element‚ may be positive or negative. It is called the oxidation number or state of the element in the compound. Oxidation numbers are very useful in keeping track of what happens to electrons when various elements combine to form compounds. By remembering a few
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Sulphur dioxide in white wine Date: XX/XX/XXXX Objective To determine the total sulphur dioxide content in a brand of white wine. Theory Hydrogensulphite is often added to white wine for its preservation. Only a little amount of free SO2 exist in white wine. All the available SO2 (including those from hydrogensulphite) are first converted to SO32- as illustrated by the following equations. SO2(aq) + 2OH-(aq) SO32-(aq) + H2O(l) HSO3-(aq) + OH-(aq) SO32-(aq) + H2O(l) Addition of acid
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of the total air pollution. It is produced by unburned fuel in the form of oxides of Nitrogen and hydrocarbons. One of the hydrocarbons produced is Carbon monoxide which is one of the most dangerous gases resulting in many health problems sometimes even death. Another cause of air pollution is Nitrogen oxides. Nitrogen oxide is one of the harmful gases‚ it is produced into the atmosphere by burning of fuel. Nitrogen oxide is very dangerous when combined with rain; it forms Nitrogen trioxide which
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right when you need it. Hot-Can is non-toxic and non-flammable‚ and 100% recyclable. 1.How does Hot-Can work? Hot-Can has developed a special double-chambered aluminium can which contains the beverage in the outer chamber and holds water and calcium oxide (quick lime) separately in the inner chamber. When the seal at the bottom of the can is depressed and broken‚ the water mixes with the quicklime‚ starting an exothermic reaction that heats the contents of the outer chamber by 50-55°C in just 3 minutes
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What is Magnesium chloride(MgCl2)? What is it used for and why? What does it look like? Magnesium chloride is the name of a chemical formula of MG CL two. This is a salt and they are a typical ion halide. halides are very soluble to water. magnesium chloride is used for deicing on highways in sidewalks and also parking lots it is a good source of de-icing. The color that it appears is white or colorless crystalline solid. What is magnesium or what is chloride? whare are they located? You can find
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iLab‚ Week # 3 ATOMIC WEIGHT OF MAGNESIUM LAB Introduction The purpose of this lab experiment is to determine the atomic weight of magnesium by measuring the amount of hydrogen gas evolved when hydrochloric acid reacts with magnesium. The reaction is as followed: Mg + 2HCL H2 + Mg2+(aq) + 2Cl-(aq) In this experiment there is a one to one relationship between the number of moles of hydrogen gas evolved and the moles of magnesium metal consumed in the reaction. Therefore in the finding of
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of magnesium · Change the amount of acid · Change the amount of water Method: · Set up apparatus as shown · Add 30ml of hydrochloric acid into the beaker · Measure 5cm of magnesium · Add the 5cm of magnesium to the hydrochloric acid · Put a bong onto the conical flask · Start timing · Measure the amount of gas collected every 10 seconds for 2 minutes Diagram: Prediction: I predict that as the concentration of the Hydrochloric acid increases‚ the time taken for the magnesium to
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exists many problems of construction materials industry. Energy consumption of construction materials industry accounts for 7% of national total energy consumption and 10% of industrial energy consumption. Because of dust‚ sulfur dioxide and nitrogen oxide emissions‚ building materials industry is the key industry national emission regulation. Therefore‚ green development‚ recyclable development and low carbon development become the healthy development of building materials industry direction. The
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Nitric Oxide is a gas that helps your body with the circulation of the blood. It also regulates other functions of the body. Nitric Oxide can also help control blood pressure. It is also especially popular with men in that nitric oxide helps with some cases of erectile dysfunction. Nitric Oxide supplements initially became popular with the bodybuilding community. The improved blood flow helps with the "pump" that bodybuilders are always looking for. Making the blood vessels larger allows for better
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