The enthalpy of combustion for octane (c8h18( a key component of gasoline, is -5,074 kj/mol. this value is the hrxn for which of the following reactions?

a- 2c8h18(l) + 25o2(g) 16co2(g) + 18h2o(g)
b- c8h18(l) + 12.5o2(g) 8co2(g) + 9h2o(g)
c- 16co2(g) + 18h2o(g) 2c8h18(l) + 25o2(g)
d- 8co2(g) + 9h2o(g) c8h18(l) + 12.5o2(g)

You are to give ampicillin with a recommended dose of 25mg/kg to a child with a mass of 29kg. if stock on hand is 250mg/capsule how many capsules should be given?

What term is missing from the central region that describes hypotheses, theories, and laws? popular predictable mathematical falsifiable

The picture represents the process that produces most of the energy used by living organisms on earth. which process is represented in the picture? a) the magnetic attraction between two hydrogen nuclei. b) the fusion of hydrogen nuclei to produce a helium nucleus in the core of the sun. c) the fission of hydrogen nuclei to produce a helium nucleus in the core of the sun. d) the chemical reaction between hydrogen nuclei to produce a helium nucleus in earth's atmosphere.