At 40°c, heptane has a vapor pressure of about 92.2 torr and octane has a vapor pressure of about 31.2 torr. assuming ideal behavior, what is the vapor pressure of a solution that contains twice as many moles of heptane as octane?

Explain which atom l or m is more stable and why

Look at the spectrums of a star moving towards earth and a motionless star. which of these is a correct inference that can be draw from the observation of the two spectrums? (2 points) the spectrum of a motionless star is difficult to be viewed separately using oridinary telescopes. the spectrum of a motionless star is identical to the spectrum of a star which moves towards earth. the spectrum of a star shifts towards the red region when the star moves towards earth. the spectrum of a star shifts towards the blue region when the star moves towards earth.

Which statement names the physical property of wood a. wood is softer than coal b. wood does not rust c. wood can rot d. wood can burn