6. A mixture of 90.0 g of benzene [C6H6(l)] and 65.5 g of toluene [C7H8(l)] is prepared. Given that the vapor pressure of benzene is 94.4 torr and that of toluene is 29.0 torr find A. The mole fraction of benzene in the solution B. The partial pressure of benzene above the solution.

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.

Asolid that forms and separates from a liquid mixture is called

What is the chemical name of the compound na2co3? use the list of polyatomic ions and the periodic table to you answer. a. sodium carbon oxide b. sodium carbonate c. sodium(ll) carbonate d. sodium oxalate