manmade substances in the air we breath such as fine particles produced by the burning of fossils fuel ground level ozone‚ which is a reactive form of oxygen that is a primary component of urban smog and noxious gases such as sulfur dioxide‚ nitrogen oxides‚ carbon monoxide‚ and chemical vapors. The health effects of air pollution have been reported in research studies over the past 30 years. These effects include respiratory diseases such as asthma‚ cardiovascular diseases changes in lung development
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Commercial Cells Galvanic Cell A Galvanic cell is also known as a Voltaic cell. It was named after Luigi Galvani and Alessandro Volta. A galvanic cell is capable of producing an electric current from a redox reaction that occurs within it and consists of two half cells. Each half cell consists of an electrode and electrolyte and a salt bridge. In a galvanic cell one metal can undergo reduction and the other oxidation. A typical galvanic cell is based on the spontaneous redox reaction: Net Ionic
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other metals found in the earth’s crust‚ therefore making the demand for fine quality iron ore extremely high. Iron ore is any form of rock in which iron can be economically extracted from. The iron within the rock comes in two main forms of iron oxides: magnetite and hematite. The three primary sources iron ores found within the earth’s crust are banded iron formations‚ magmatic magnetite ore deposits and hematite ore. The hematite and magnetite is physically extracted from the iron ore by using
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A. MATTER * Nature of matter. * Describe the states of matter and explain their conversion in terms of the kinetic particle theory. * Describe and explain diffusion. * Describe dependence of rate of diffusion on molecular mass‚ qualitatively. * Experimental techniques Measurement. * Name appropriate apparatus for the measurement of time‚ temperature‚ mass and volume‚ including burettes‚ pipettes and measuring cylinders. Criteria of purity. * Identify substances
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Basseterre. His financial advisor Tyrah‚ has discovered a new technique for boosting company profit. If the company can cheaply extract the pure form of a new metal M from its oxide‚ the metal could be sold at 3x the price of production. What is the empirical formula of this oxide‚ given the following: Total mass of metallic oxide: 80.763 g Mass of metal is 74 % of the total mass (It was later discovered the new metal held 11 protons‚ 12 neutrons & 11 electrons) 4. Mr. Collins went home and wanted
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Assignment On Engineering Materials (Glass) Introduction Glass is a non-crystalline solid material. Glasses are typically brittle‚ and often optically transparent. The most prevalent type of glass‚ used for centuries in windows and drinking vessels‚ is soda-lime glass‚ made of about 75% silica (SiO2) plus Na2O‚ CaO‚ and several minor additives. Often‚ the term glass is used in a restricted sense to refer to this specific use. [pic] [pic]Roman Cage Cup from the 4th century A.D. In
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Report Sheet Experiment 1 0 Balance the equations for the three reactions studied. Note‚ in all reactions the numbers of atoms of each type and the total charge must be equal on each side of the equation. Equations 1) Cu + 4H+(aq) + 2NO3-(aq) Cu2+(aq) + 2NO2 + 2H2O 2) Cu2+(aq) + 2-OH(aq) Cu(OH)2 3) Cu(OH)2 + heat CuO + H2O (Balanced) 4) CuO + H2SO4 Cu2+(aq) + SO42-(aq) + H2O (Balanced)
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The production of electricity through the combustion of coal is one of the oldest and cheapest methods to produce electricity. Coal supplies are plentiful and will be available to produce electricity for hundreds of years. While conventional supplies of oil and natural gas are expected to run out in the near future. This has cause a growth in nuclear power. Through out this report one will also learn the disadvantages and advantages to coal burning power plant and how they operate. Coal has played
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greatly reduced the occurrence of industrial smog. However‚ the burning of fossil fuels like gasoline can create another atmospheric pollution problem known as photochemical smog. Photochemical smog is a condition that develops when primary pollutants (oxides of nitrogen and volatile organic compounds created from fossil fuel combustion) interact under the influence of sunlight to produce a mixture of hundreds of different and hazardous chemicals known as secondary pollutants. Development of photochemical
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come from car exhaust are carbon dioxide and nitrogen oxides. If too much nitrogen oxides get put into the atmosphere‚ the balance of the natural amount within the atmosphere can go out of proportion. Nitrogen oxides‚ on the other hand‚ come from burning coal‚ natural gas‚ gasoline and oil. The biggest cause of this gas being put into the air is from car exhausts. In addition‚ gas that is being used in lawnmowers also emits nitrogen oxides‚ however in smaller amounts. Along with those hazardous
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