CHANGE Name _____________________________________ PRACTICE PROBLEMS Period _________________ Date ______________ SECTION 2.1 MATTER 1. Which of the following is not a physical change? a. dissolving sugar in water b. burning gasoline in an engine c. evaporating sea water to obtain salt d. slicing a piece of bread 2. Which of the following is not a property of a gas? a. has a definite shape b. has no definite volume c. assumes the shape of its container
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cell cars and the issues with burning gasoline and its causing global warming. Iwill cover how we have alturnatives in transportation and the pros and cons of each of them. Global warming is a serious problem that the world is facing. Did you know that global warming increases the average tempature of the earths surface? This is due to the burning of fossil fules like coal‚ natural gases‚ and oil. These fossil fuels are what we burn in gasoline engines‚ factories and the electrical
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trucks. They provide more torque then a regular gasoline engine because of the long stroke of the piston. Most diesel engines make peak torque at very low rpm. Diesel engines do not have spark plugs. They develop combustion by heating up the air going into the cylinder‚ while the air is heated the fuel injector sprays into the bowl of the cylinder creating ignition. Diesel engines are also known as compression ignition engines. A typical gasoline engine is only thirty percent efficient‚ while a
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to choose from such as ethanol flex-fuel‚ electric‚ and hybrid vehicles. In addition to regular gasoline‚ flex-fuel vehicles operate on E85‚ which is a mix of gas and ethanol. The ethanol levels of E85 range be tween 51% and 83% (Clean Cities‚ 2013). The miles per gallon are decreased when flex-fuel vehicles utilize E85 rather than regular gasoline‚ due to ethanol containing less energy than gasoline (Clean Cities‚ 2013). Regardless of this fact‚ many individuals power these vehicles with E85 because
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Introduction The purpose of this lab is to distill crude oil and learn how the chemical properties influence the temperature. The distillation of a substance is based on the boiling points. When the crude oil is brought to a boil‚ at 275°C‚ the gasoline and kerosene are distilled‚ but the lubricant remains part of the crude oil. Procedure 1. From the Equipment menu‚ select Distillation Equipment and obtain a Round Bottom Flask (100 ml). 2. Select the flask by clicking on it. From the Equipment
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the tower as a vertical beam. Coefficient of linear thermal expansion of iron is . 4. The density of gasoline at is . a) What is the density on a hot day‚ when the temperature is ? b) What is the percent change in density? c) What is the percentage of gasoline spilled at if initially we filled a steel tank full of gasoline at ? Coefficient of linear thermal expansion of gasoline and steel are and ‚ respectively. 5. A flat bimetallic strip consists of a strip of aluminium firmly glued
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1970’s Methyl Tertiary Butyl Ether (MTBE) was put in gasoline to boost octane. In 1999 the Environmental Protection Agency (EPA) recommended phasing out the use of MTBE which was found to be a cancer causing chemical. MTBE contaminated water thru public and private water wells. In 2002 Missouri lawmakers decided to phase out MTBE. The state wide phase out was complete on July 1‚ 2005 Methyl Tertiary Butyl Ether was commonly put as an additive in gasoline to reduce engine knocks until 2002. In 2002 a law
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The biggest difference between gasoline and electric vehicles is the engine. Instead of an internal combustion engine the electric vehicle has an electric motor. Also instead of gasoline as fuel an electric vehicle uses batteries for energy. Finally‚ instead of injecting fuel into the motor the electric car has a motor controller that takes power from the batteries
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is very important to their everyday life (Anonymous‚ 2007). They prove this in their unwillingness to change their driving habits even when gas prices increase and by the fact that 36 percent of American households spend more than $200 a month on gasoline for their vehicles. The American people are dependent on their personal transportation and find the convenience of personal transportation more important than most other things in their household budget. The student is not much different from the
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Class D fires‚ which are also known as combustible metals‚ can burn with intense heat. Fire fighters need to do their best to avoid having water coming in contact with these kinds of products‚ such as magnesium and gasoline. According to Robert Vettori‚ “Magnesium has a strong affinity for oxygen that it attracts the oxygen from oxygen containing compounds” (5). With this said‚ it shows that the two products burning are both magnesium and an adequate supply of oxygen. The National Fire Protection
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