Chemistry, 26.11.2019 02:31 20alondra04
Ethanol, c2h6o, is most often blended with gasoline - usually as a 10 percent mix - to create a fuel called gasohol. ethanol is a renewable resource and ethanol-blended fuels, like gasohol, appear to burn more efficiently in combustion engines. the heat of combustion of ethanol is 326.7 kcal/mol. the heat of combustion of 2-methylheptane, c8h18, is 1.306×103 kcal/mol. how much energy is released during the complete combustion of 364 grams of 2-methylheptane ? kcal assuming the same efficiency, would 364 grams of ethanol provide more, less, or the same amount of energy as 364 grams of 2-methylheptane?
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Chemistry, 22.06.2019 09:10
Which class of molecules functions as chemical signals? hormones water carbohydrates proteins
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Chemistry, 22.06.2019 11:00
Which statement is true about hcl? (5 points) select one: a. it is a salt because it increases the concentration of metallic ions. b. it is a salt because it is formed by the reaction of an acid and a base. c. it is an acid because it increases the concentration of hydroxyl ions. d. it is an acid because it increases the concentration of hydronium ions.
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Chemistry, 23.06.2019 01:40
Calcium carbonate decomposes at high temperatures to give calcium oxide and carbon dioxide as shown below. caco3(s) cao(s) + co2(g) the kp for this reaction is 1.16 at 800°c. a 5.00 l vessel containing 10.0 g of caco3(s) was evacuated to remove the air, sealed, and then heated to 800°c. ignoring the volume occupied by the solid, what will be the mass of the solid in the vessel once equilibrium is reached?
Answers: 1
Ethanol, c2h6o, is most often blended with gasoline - usually as a 10 percent mix - to create a fuel...
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