and nitrogen) CARBON DIOXIDE + water + unaffected nitrogen Typical Engine Combustion FUEL + AIR UNBURNED HYDROCARBONS + NITROGEN OXIDES + CARBON MONOXIDE + CARBON DIOXIDE + water Exhaust Pollutants • HYDROCARBONS Hydrocarbon emissions result when fuel molecules in the engine do not burn or burn only partially. Hydrocarbons react in the presence of nitrogen oxides and sunlight to form ground-level ozone‚ a major component of smog. Ozone irritates the eyes‚ damages the lungs‚ and aggravates respiratory
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Anderson Kuo Period 1 CHAPTER 19 – The Representative Elements: Groups 1A through 4A -19.1- A Survey of the Representative Elements I. Elements A. Representative Elements: Groups 1A through 8A ← Filling s and p orbitals ← First member of a group forms the strongest ( bonds; results in diatomic molecules B. Transition Elements: center of the table ← Filling d orbitals C. Lanthanides & Actinides: listed separately‚ on the bottom on the table ← Filling
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monoxide‚ oxides of nitrogen‚ hydrocarbons and particulates which cause great harm to people who breath them and pollutes environment. And also they react with environmental gases to create further toxic gases (Secondary
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greenhouse effect. II. The greenhouse gas emissions come mostly from energy use. A. There are 6 primary greenhouse gases. 1. Water Vapor is one of the greenhouse gases. 2. Carbon Dioxide is one of the greenhouse gases. 3. Nitrous Oxide is one of the greenhouse gases. 4. Ozone is one of the greenhouse gases. 5. Methane is one of the greenhouse gases. 6. Chlorofluorocarbon is one of the greenhouse gases. B. There are 6 principal pollutants that contribute to the formation
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Air Pollution in Hong Kong Chemistry Project the Written Report 1.Introduction 3 2.Sources of Air Pollution 3 - 7 1.Vehicles 4 - 5 1. Pollutants produced by vehicles 4 2. Reasons why pollutants are produced 4 3. Impacts of the pollutants from vehicles 4 - 5 4. Method to eliminate pollutants 5 2.Power Stations 6 - 7 1. Pollutants produced by power stations 6 2. Reasons why pollutants are produced 6 3. Impacts of the pollutants from power stations 6 4. Methods to eliminate
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reacts very slowly with the oxygen‚ O‚ in the air. However‚ as magnesium is heated‚ it reacts quicker with the oxygen and burns with a white light to produce MgO. To protect others from the smoke‚ containing Magnesium Oxide‚ the crucible had to remain covered. Some magnesium oxide escaped‚ when the crucible was not covered. The crucible had to be slightly ajar when heating up the magnesium‚ so that oxygen could get to the reaction. Without oxygen‚ a fire cannot exist. The shininess of the metal
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Chemistry Practical: Activity Series of Metals Introduction: The chemical activity of a metal is directly related to its practical use. In this investigation you will investigate the chemical activity of metals with oxygen‚ water‚ acid and alkali‚ to rank metals in order of their activity. Aim: To observe the reactivity of metals in order to determine the activity series of metals. Risk Assessment: In this investigation‚ hydrochloric acid solution is used which is toxic by all routes of
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archives to store valuable newspaper‚ letter or maps. The choice of boxes is important because if it not suitable it can damage the materials. The next factor is from air pollutants. Air pollutants criteria contain of three which is sulfur oxides‚ nitrogen oxides and ozone that can arise in form of indoor pollution. Some of those criteria can be control by installed system to remove it and some only can be
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Presently‚ commercial NR latex concentrate is preserved with either a high ammonia system (HA latex) at 0.7% ammonia or LA-TZ a low ammonia system (LA latex) at 0.2% ammonia) and 0.025% of 1:1 mixture of tetramethylthiuram disulphide (TMTD) and zinc oxide. The HA system poses serious environmental problem such as strong smell due to the presence of large amount of ammonia. On the other hand‚ TMTD has been implicated to produce carcinogenic nitrosamines in rubber products and is an allergen causing
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Chemical Report The chemical I will be writing this report on is oxygen. The name oxygen comes from the Greek word “oxygens‚” which means “acid producer”. Dictionary.com defines oxygen as “a colorless‚ odorless‚ gaseous element constituting about one-fifth of the volume of the atmosphere and present in a combined state in nature.” Oxygen has many uses today. First‚ oxygen is used by people‚ plants‚ and animals in the respiration process. Tanks of oxygen are used in the healthcare field to treat
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