Heptane gas reacts with oxygen gas to give carbon dioxide gas and water vapor (gas). If you mix heptane and oxygen in the correct stoichiometric ratio, and if the total pressure of the mixture is 300 mm hg, what are the partial pressures of heptane.

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Which statements about the two fossil images are correct? 1. cave bears are ancestors of plateosaurus. 2. plateosaurus were present on earth before ostracoderms. 3. ostracoderms were the first to die. 4. plateosaurus died after the ostracoderms. 5. cave bears are the oldest fossils.

Which group of college students is typically offered scholarship? a. freshmen, sophomores, and juniors. b. biology, english, and engineering majors. c. hard workers, part-time students, and out of state students. d. first time freshmen, current students, and transfer students.