Chemistry, 19.05.2021 05:50 jones03riley
What mass of octane (C8H18) must be burned in order to release 5340 kJ of heat? DHcomb = – 5471 kJ/mol
Answers: 3
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Acompound has a molar mass of 92.02 grams/mole, and its percent composition is 30.4% nitrogen (n) and 69.6% oxygen (o). what is its molecular formula? a. n2o4 b. no2 c. n2o d. n4o2
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Which of the following is an indication that a substance has undergone a chemical change? a. no new product has been formed. b. the color of the substance has not changed. c. the original constitute has not changed. d. the molecular structure has changed.
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Condensation happens when water vapor cools. true or false? ?
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What mass of octane (C8H18) must be burned in order to release 5340 kJ of heat? DHcomb = – 5471 kJ/m...
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