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older. Or import from another browser. Import favorites [Review Topics] [References] Some fuel-efficient hybrid cars are rated at 55.0 miles per gallon of gasoline. Calculate the energy used to drive 9.00 miles if gasoline produces 48.0 kJ/g and the density of gasoline is 0.737 g/cm. (1.00 gal = 3.785 L) Energy = kJ %3D Submit Answer Retry Entire Group 3 more group attempts remaining 640 PM

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1. Most of the people killed in workplace fires are not killed by the flames directly, but indirectly by smoke inhalation. True or False *

Firefox File Edit View History Bookmarks Tools Window Help * ? 4) 54% O Wed 9:28 PM Macy My Academic Requ O Course Hon X M Drop-in Follow Post Attendee Answered: A sc The Accompan A Survey Show Based On A? I List The Follow + A 2% https://openvellum.ecollege.com/course.html?courseld=16242782&OpenVellumHMAC=1d7a76c4395 •.. Getting Started co COURSERA 8 Uni. Edinburgh E SISTERHOOD ROU... O Max O z-table CHEM 341 Organic Chemistry for Scientists and Professionals Hi, Macy v Sign Out Help Mastering Chemistry Course Home O My Courses (Assignment 6 Course Home Question 1 < 1 of 5 Syllabus List the following carbocations in each set in order from most stable to least stable: Scores Rank from most stable to least stable. To rank items as equivalent, overlap them. еТеxt Reset Help Document Sharing User Settings CH3CH2 CH2CH CH3CH2CCH3 CH3 CH2CH Course Tools H CH3 CH3 Most stable Least stable II

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5. The car you have been driving has a posted fuel consumption of 10.0 L/100 km (city) and 7.1 L/100 km (highway) according to the EnerGuide information. Overall, your actual fuel consumption has averaged 10.5 L/100 km. a) Is this better or worse than the posted fuel consumption? b) Provide three reasons why your actual fuel consumption may be different from the posted consumption. c) List three ways in which you could improve your fuel consumption (other than buying a new carl).

To boil water by placing a pot onto the stove we must increase its temperature to 100°C. It takes longer to boil a large pot of water than a small pot because: Radiation and conduction transfer the thermal energy & the large pot contains more water so it needs less thermal energy to reach 100°C. Only radiation transfers the thermal energy & the large pot contains more water so it needs more thermal energy to reach 100°C. Only Conduction transfers the thermal energy & the large pot contains more water so it needs less thermal energy to reach 100°C. Conduction and convection transfer the thermal energy & the large pot contains more water so it needs more thermal energy to reach 100°C.

In class, we saw that the chemical reaction for combustion of a hydrocarbon fuel CXHY can be written: C;H, + (x + ¼ y) O2 → x CO2 + ½y H2O Determine the grams of CO2 output per gram of fuel input for the following alkane fuels: a. Methane – CH4 b. Ethane – C2H6 с. Propane - C3H8

Part A How many kWh of energy does a 600-W toaster use in the morning if it is in operation for a total of 4.0 min ? Express your answer to two significant figures and include the appropriate units. Energy = kWh Submit Request Answer Part B At a cost of 9.0 cents/kWh, estimate how much this would add to your monthly electric energy bill if you made toast four mornings per week (16 times per month) Express your answer using two significant figures. VO AE Cost = cents/month Submit Request Answer

Esc ||| = OTHERMOCHEMISTRY A student runs two experiments with a constant-volume "bomb" calorimeter containing 1200. g of water (see sketch at right). Calculating heat of reaction from bomb calorimetry data First, a 5.000 g tablet of benzoic acid (C6H,CO₂H) is put into the "bomb" and burned completely in an excess of oxygen. (Benzoic acid is known to have a heat of combustion of 26.454 kJ/g.) The temperature of the water is observed to rise from 16.00 °C to 38.96 °C over a time of 9.2 minutes. 2 4. Next, 5.730 g of acetaldehyde (C₂H₂O) are put into the "bomb" and similarly completely burned in an excess of oxygen. This time the temperature of the water rises from 16.00 °C to 42.19 °C. 84°F Sunny Use this information, and any other information you need from the ALEKS Data resource, to answer the questions below about this reaction: FI Explanation Is this reaction exothermic, endothermic, or neither? 4- F₂ Check 2C₂H4O(g) + 50₂(g) 4CO₂(g) + 4H₂O(g) Be sure any of your answers that are…

Top 7 Renewable Energy Sources in 2020 SOLAR ENERGY Wind ENERGY BIO OCEAN ENERGY HYFROGEN ENERGY GEOTHERMAL ENERGY POWER HYDRO POWER 13. What sectors produce the most carbon dioxide emissions? (Write in order #1, #2..)|

reading: The accelerometer keeps track of how quickly the speed of your vehicle is changing. When your car hits another car—or wall or telephone pole or deer—the accelerometer triggers the circuit. The circuit then sends an electrical current through the heating element, which is kind of like the ones in your toaster, except it heats up a whole lot quicker. This ignites the charge which prompts a decomposition reaction that fills the deflated nylon airbag (packed in your steering column, dashboard or car door) at about 200 miles per hour. The whole process takes a mere 1/25 of a second. The bag itself has tiny holes that begin releasing the gas as soon as it’s filled. The goal is for the bag to be deflating by time your head hits it. That way it absorbs the impact, rather than your head bouncing back off the fully inflated airbag and causing you the sort of whiplash that could break your neck. Sometimes a puff of white powder comes out of the bag. That’s cornstarch or talcum powder to…

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elp acellus_engine.html?ClassID=2134898241# Manipulate equation 3 to match the H2O part of the overall equation. What will be the new AH value? 3) H2(g) + ¿O2(g) → H,0(g) AH = -241.8 kJ %3D goal equation: 4NH3(g) + 502(g) → 4NO(g) + 6H2O(g) AH° = [ ? ] kJ %3D Enter either a + or - sign AND the magnitude. Do not round. Enter

A solid fuel with a high carbon content and made by heating coal in the absence of air is called ______.

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