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homework_11 - Grodin Micah Homework 11 Due 11:00 pm Inst...

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Grodin, Micah – Homework 11 – Due: Nov 22 2005, 11:00 pm – Inst: Sara Sutcliffe 1 This print-out should have 15 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. The due time is Central time. 001 (part 1 of 1) 10 points Which of the following is a major component of natural gas? 1. propane 2. butane 3. ethane 4. methane 002 (part 1 of 1) 10 points Two isomers cannot be differentiated by their 1. boiling point. 2. chemical formula. 3. melting point. 4. chemical structure. 003 (part 1 of 1) 10 points Which of the following is a disadvantage of adding methanol (CH 3 OH) to gasoline? 1. It is easily destabilized by small amounts of moisture which can lead to corrosion. 2. Its presence lowers the emission levels of hydrocarbons, carbon monoxide and nitrogen oxides from automobiles. 3. It results in a lower exhaust tempera- ture. 4. It results in a higher octane rating. 004 (part 1 of 1) 10 points What is an example of biomass? 1. hydrogen gas 2. wood 3. water 4. petroleum 5. natural gas 005 (part 1 of 1) 10 points During petroleum refining, catalysts play an extremely important role during the 1. cracking and reforming processes.
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