Ethanol is added to gasoline because the oxygen it contains improves gasoline's burning efficiency. its combustion reaction is given below. ch3ch2oh(l) 3o2(g) → 2co2(g) 3h2o(g) ∆h
a) is this an exothermic or endothermic reaction? b) if 15.3 grams of pure ethanol is completely converted to products, calculate how much heat is absorbed or released, in (1) kj and in (2) kcal. c) if 42.7 g of water vapor is produced, how much heat, in kl, is absorbed or released?
Answers: 2
Chemistry, 21.06.2019 19:00
Iknow the answer to 13 is b and 14 is d. i just need to know why the correct answers are correct
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There are 6.022, 104 atoms of hg in 1 mole of hg the number of atoms in 45 moles of hg can be found by multiplying 4.5 by 6.022, 102 which is the number of atoms in 4.5 moles of hg, correctly written in scientific notation with the correct number of significant figures? 0 21,109 0 21,100 271, 1024 27.099, 100 mark this and retum save and exit submit
Answers: 1
Chemistry, 22.06.2019 14:00
8.98 dm3 of hydrogen gas is collected at 38.8 °c. find the volume the gas will occupy at -39.9 °c if the pressure remains constant.
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Ethanol is added to gasoline because the oxygen it contains improves gasoline's burning efficiency....
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