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May 26, 2007, 09:34:04 PM

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Topic Summary

Posted on: May 16, 2007, 11:10:13 AM Posted by: Dujean E
Insert Quote the answer is D
Posted on: May 14, 2007, 10:10:06 PM Posted by: perryinjax
Insert Quote The combustion engine in your car converts the chemical energy in the gasoline to mechanical energy in your wheels turning. (The chemical energy is converted to heat energy which causes the expansion of gases which pushes the piston-turns the crank-turns the wheels-moves the car.
Posted on: May 13, 2007, 03:10:07 PM Posted by: Lazer Fazer
Insert Quote Ask yourself what 'drives' each of the options:A: ElectricityB: Nuclear reactionsC: Steam (water)D: Combustion of fuelNow in which situation is there a chemical reaction? The answer is D, because in combustion the energy given off arises from the breaking of the bonds within the fuel. And then that energy is used to move a car or what have you.
Posted on: May 12, 2007, 04:10:05 PM Posted by: rick r
Insert Quote d
Posted on: May 10, 2007, 10:10:23 PM Posted by: iesha h
Insert Quote b???
Posted on: May 10, 2007, 04:10:07 PM Posted by: bravozulu
Insert Quote D
Posted on: May 09, 2007, 09:10:07 AM Posted by: kia_1718@sbcglobal.net
Insert Quote A. electric motorB. nuclear reactorC. steam turbineD. internal or external combustion engine